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Finding the Fourth Proportional to 138,596.58, 207,873.27 and 45,101.70

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Solution

The fourth proportional to 138,596.58, 207,873.27 and 45,101.70 is: 67,645.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,596.58 : 207,873.27 = 45,101.70 : x
  2. Step 2: Convert to fraction form
    138,596.58/207,873.27 = 45,101.70/x
  3. Step 3: Cross multiply
    138,596.58x = 207,873.27 × 45,101.70
  4. Step 4: Simplify right side
    138,596.58x = 9,375,437,861.56
  5. Step 5: Solve for x
    x = 9,375,437,861.56/138,596.58
  6. Step 6: Final answer
    x = 67,645.52

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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.