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Finding the Fourth Proportional to 138,063.23, 207,070.54 and 36,862.54

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Solution

The fourth proportional to 138,063.23, 207,070.54 and 36,862.54 is: 55,287.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,063.23 : 207,070.54 = 36,862.54 : x
  2. Step 2: Convert to fraction form
    138,063.23/207,070.54 = 36,862.54/x
  3. Step 3: Cross multiply
    138,063.23x = 207,070.54 × 36,862.54
  4. Step 4: Simplify right side
    138,063.23x = 7,633,146,063.57
  5. Step 5: Solve for x
    x = 7,633,146,063.57/138,063.23
  6. Step 6: Final answer
    x = 55,287.32

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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.