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Finding the Fourth Proportional to 138,034.72, 207,103.08 and 59,210.36

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Solution

The fourth proportional to 138,034.72, 207,103.08 and 59,210.36 is: 88,837.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,034.72 : 207,103.08 = 59,210.36 : x
  2. Step 2: Convert to fraction form
    138,034.72/207,103.08 = 59,210.36/x
  3. Step 3: Cross multiply
    138,034.72x = 207,103.08 × 59,210.36
  4. Step 4: Simplify right side
    138,034.72x = 12,262,647,923.91
  5. Step 5: Solve for x
    x = 12,262,647,923.91/138,034.72
  6. Step 6: Final answer
    x = 88,837.42

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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.