Home / 99,882.10-137,672.74-70,819.92

Finding the Fourth Proportional to 99,882.10, 137,672.74 and 70,819.92

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Solution

The fourth proportional to 99,882.10, 137,672.74 and 70,819.92 is: 97,614.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,882.10 : 137,672.74 = 70,819.92 : x
  2. Step 2: Convert to fraction form
    99,882.10/137,672.74 = 70,819.92/x
  3. Step 3: Cross multiply
    99,882.10x = 137,672.74 × 70,819.92
  4. Step 4: Simplify right side
    99,882.10x = 9,749,972,432.98
  5. Step 5: Solve for x
    x = 9,749,972,432.98/99,882.10
  6. Step 6: Final answer
    x = 97,614.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.