Home / 138,626.55-207,795.11-100,583.91

Finding the Fourth Proportional to 138,626.55, 207,795.11 and 100,583.91

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Solution

The fourth proportional to 138,626.55, 207,795.11 and 100,583.91 is: 150,770.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,626.55 : 207,795.11 = 100,583.91 : x
  2. Step 2: Convert to fraction form
    138,626.55/207,795.11 = 100,583.91/x
  3. Step 3: Cross multiply
    138,626.55x = 207,795.11 × 100,583.91
  4. Step 4: Simplify right side
    138,626.55x = 20,900,844,139.76
  5. Step 5: Solve for x
    x = 20,900,844,139.76/138,626.55
  6. Step 6: Final answer
    x = 150,770.86

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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.