Home / 120,202.08-165,929.92-74,902.42

Finding the Fourth Proportional to 120,202.08, 165,929.92 and 74,902.42

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Solution

The fourth proportional to 120,202.08, 165,929.92 and 74,902.42 is: 103,397.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,202.08 : 165,929.92 = 74,902.42 : x
  2. Step 2: Convert to fraction form
    120,202.08/165,929.92 = 74,902.42/x
  3. Step 3: Cross multiply
    120,202.08x = 165,929.92 × 74,902.42
  4. Step 4: Simplify right side
    120,202.08x = 12,428,552,578.56
  5. Step 5: Solve for x
    x = 12,428,552,578.56/120,202.08
  6. Step 6: Final answer
    x = 103,397.15

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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.