Home / 215,852.15-324,069.83-137,120.15

Finding the Fourth Proportional to 215,852.15, 324,069.83 and 137,120.15

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Solution

The fourth proportional to 215,852.15, 324,069.83 and 137,120.15 is: 205,865.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,852.15 : 324,069.83 = 137,120.15 : x
  2. Step 2: Convert to fraction form
    215,852.15/324,069.83 = 137,120.15/x
  3. Step 3: Cross multiply
    215,852.15x = 324,069.83 × 137,120.15
  4. Step 4: Simplify right side
    215,852.15x = 44,436,503,014.47
  5. Step 5: Solve for x
    x = 44,436,503,014.47/215,852.15
  6. Step 6: Final answer
    x = 205,865.46

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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.