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Finding the Fourth Proportional to 138,588.57, 207,841.75 and 59,684.45

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Solution

The fourth proportional to 138,588.57, 207,841.75 and 59,684.45 is: 89,508.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,588.57 : 207,841.75 = 59,684.45 : x
  2. Step 2: Convert to fraction form
    138,588.57/207,841.75 = 59,684.45/x
  3. Step 3: Cross multiply
    138,588.57x = 207,841.75 × 59,684.45
  4. Step 4: Simplify right side
    138,588.57x = 12,404,919,347.37
  5. Step 5: Solve for x
    x = 12,404,919,347.37/138,588.57
  6. Step 6: Final answer
    x = 89,508.96

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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.