Home / 102,179.80-141,010.84-56,240.74

Finding the Fourth Proportional to 102,179.80, 141,010.84 and 56,240.74

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Solution

The fourth proportional to 102,179.80, 141,010.84 and 56,240.74 is: 77,613.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,179.80 : 141,010.84 = 56,240.74 : x
  2. Step 2: Convert to fraction form
    102,179.80/141,010.84 = 56,240.74/x
  3. Step 3: Cross multiply
    102,179.80x = 141,010.84 × 56,240.74
  4. Step 4: Simplify right side
    102,179.80x = 7,930,553,989.62
  5. Step 5: Solve for x
    x = 7,930,553,989.62/102,179.80
  6. Step 6: Final answer
    x = 77,613.72

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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.