Home / 138,436.10-207,665.85-38,596.37

Finding the Fourth Proportional to 138,436.10, 207,665.85 and 38,596.37

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Solution

The fourth proportional to 138,436.10, 207,665.85 and 38,596.37 is: 57,897.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,436.10 : 207,665.85 = 38,596.37 : x
  2. Step 2: Convert to fraction form
    138,436.10/207,665.85 = 38,596.37/x
  3. Step 3: Cross multiply
    138,436.10x = 207,665.85 × 38,596.37
  4. Step 4: Simplify right side
    138,436.10x = 8,015,148,733.00
  5. Step 5: Solve for x
    x = 8,015,148,733.00/138,436.10
  6. Step 6: Final answer
    x = 57,897.82

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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.