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Finding the Fourth Proportional to 162,500.70, 243,712 and 67,732.21

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Solution

The fourth proportional to 162,500.70, 243,712 and 67,732.21 is: 101,582.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,500.70 : 243,712 = 67,732.21 : x
  2. Step 2: Convert to fraction form
    162,500.70/243,712 = 67,732.21/x
  3. Step 3: Cross multiply
    162,500.70x = 243,712 × 67,732.21
  4. Step 4: Simplify right side
    162,500.70x = 16,507,152,363.52
  5. Step 5: Solve for x
    x = 16,507,152,363.52/162,500.70
  6. Step 6: Final answer
    x = 101,582.04

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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.