Home / 215,623.76-323,498-89,240.64

Finding the Fourth Proportional to 215,623.76, 323,498 and 89,240.64

Calculator

Solution

The fourth proportional to 215,623.76, 323,498 and 89,240.64 is: 133,886.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,623.76 : 323,498 = 89,240.64 : x
  2. Step 2: Convert to fraction form
    215,623.76/323,498 = 89,240.64/x
  3. Step 3: Cross multiply
    215,623.76x = 323,498 × 89,240.64
  4. Step 4: Simplify right side
    215,623.76x = 28,869,168,558.72
  5. Step 5: Solve for x
    x = 28,869,168,558.72/215,623.76
  6. Step 6: Final answer
    x = 133,886.77

Related Problems

Find fourth proportional to 107,811.88, 161,749 and 44,620.32
Half scale
Find fourth proportional to 431,247.52, 646,996 and 178,481.28
Double scale
Find fourth proportional to 215,624.76, 323,499.50 and 89,241.64
Similar ratio
Find fourth proportional to 323,435.64, 485,247 and 133,860.96
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.