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Finding the Fourth Proportional to 137,613.52, 206,422.20 and 39,117.52

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Solution

The fourth proportional to 137,613.52, 206,422.20 and 39,117.52 is: 58,676.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,613.52 : 206,422.20 = 39,117.52 : x
  2. Step 2: Convert to fraction form
    137,613.52/206,422.20 = 39,117.52/x
  3. Step 3: Cross multiply
    137,613.52x = 206,422.20 × 39,117.52
  4. Step 4: Simplify right side
    137,613.52x = 8,074,724,536.94
  5. Step 5: Solve for x
    x = 8,074,724,536.94/137,613.52
  6. Step 6: Final answer
    x = 58,676.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.