Home / 102,294.49-141,128.19-102,136.79

Finding the Fourth Proportional to 102,294.49, 141,128.19 and 102,136.79

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Solution

The fourth proportional to 102,294.49, 141,128.19 and 102,136.79 is: 140,910.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,294.49 : 141,128.19 = 102,136.79 : x
  2. Step 2: Convert to fraction form
    102,294.49/141,128.19 = 102,136.79/x
  3. Step 3: Cross multiply
    102,294.49x = 141,128.19 × 102,136.79
  4. Step 4: Simplify right side
    102,294.49x = 14,414,380,305.11
  5. Step 5: Solve for x
    x = 14,414,380,305.11/102,294.49
  6. Step 6: Final answer
    x = 140,910.62

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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.