Home / 154,441.10-213,118.28-85,525.61

Finding the Fourth Proportional to 154,441.10, 213,118.28 and 85,525.61

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Solution

The fourth proportional to 154,441.10, 213,118.28 and 85,525.61 is: 118,019.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,441.10 : 213,118.28 = 85,525.61 : x
  2. Step 2: Convert to fraction form
    154,441.10/213,118.28 = 85,525.61/x
  3. Step 3: Cross multiply
    154,441.10x = 213,118.28 × 85,525.61
  4. Step 4: Simplify right side
    154,441.10x = 18,227,069,405.93
  5. Step 5: Solve for x
    x = 18,227,069,405.93/154,441.10
  6. Step 6: Final answer
    x = 118,019.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.