Home / 103,402.20-142,658.69-67,613.16

Finding the Fourth Proportional to 103,402.20, 142,658.69 and 67,613.16

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Solution

The fourth proportional to 103,402.20, 142,658.69 and 67,613.16 is: 93,282.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,402.20 : 142,658.69 = 67,613.16 : x
  2. Step 2: Convert to fraction form
    103,402.20/142,658.69 = 67,613.16/x
  3. Step 3: Cross multiply
    103,402.20x = 142,658.69 × 67,613.16
  4. Step 4: Simplify right side
    103,402.20x = 9,645,604,832.36
  5. Step 5: Solve for x
    x = 9,645,604,832.36/103,402.20
  6. Step 6: Final answer
    x = 93,282.39

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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.