Home / 102,862.62-141,963.54-57,543.12

Finding the Fourth Proportional to 102,862.62, 141,963.54 and 57,543.12

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Solution

The fourth proportional to 102,862.62, 141,963.54 and 57,543.12 is: 79,416.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,862.62 : 141,963.54 = 57,543.12 : x
  2. Step 2: Convert to fraction form
    102,862.62/141,963.54 = 57,543.12/x
  3. Step 3: Cross multiply
    102,862.62x = 141,963.54 × 57,543.12
  4. Step 4: Simplify right side
    102,862.62x = 8,169,025,017.84
  5. Step 5: Solve for x
    x = 8,169,025,017.84/102,862.62
  6. Step 6: Final answer
    x = 79,416.85

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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.