Home / 131,013.12-180,792.88-74,418.24

Finding the Fourth Proportional to 131,013.12, 180,792.88 and 74,418.24

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Solution

The fourth proportional to 131,013.12, 180,792.88 and 74,418.24 is: 102,694.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,013.12 : 180,792.88 = 74,418.24 : x
  2. Step 2: Convert to fraction form
    131,013.12/180,792.88 = 74,418.24/x
  3. Step 3: Cross multiply
    131,013.12x = 180,792.88 × 74,418.24
  4. Step 4: Simplify right side
    131,013.12x = 13,454,287,934.13
  5. Step 5: Solve for x
    x = 13,454,287,934.13/131,013.12
  6. Step 6: Final answer
    x = 102,694.20

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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.