Home / 74,732.70-112,099.05-67,215.90

Finding the Fourth Proportional to 74,732.70, 112,099.05 and 67,215.90

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Solution

The fourth proportional to 74,732.70, 112,099.05 and 67,215.90 is: 100,823.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,732.70 : 112,099.05 = 67,215.90 : x
  2. Step 2: Convert to fraction form
    74,732.70/112,099.05 = 67,215.90/x
  3. Step 3: Cross multiply
    74,732.70x = 112,099.05 × 67,215.90
  4. Step 4: Simplify right side
    74,732.70x = 7,534,838,534.90
  5. Step 5: Solve for x
    x = 7,534,838,534.90/74,732.70
  6. Step 6: Final answer
    x = 100,823.85

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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.