Home / 131,061.38-180,864.77-74,472.75

Finding the Fourth Proportional to 131,061.38, 180,864.77 and 74,472.75

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Solution

The fourth proportional to 131,061.38, 180,864.77 and 74,472.75 is: 102,772.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,061.38 : 180,864.77 = 74,472.75 : x
  2. Step 2: Convert to fraction form
    131,061.38/180,864.77 = 74,472.75/x
  3. Step 3: Cross multiply
    131,061.38x = 180,864.77 × 74,472.75
  4. Step 4: Simplify right side
    131,061.38x = 13,469,496,427.65
  5. Step 5: Solve for x
    x = 13,469,496,427.65/131,061.38
  6. Step 6: Final answer
    x = 102,772.43

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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.