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Finding the Fourth Proportional to 162,145.73, 243,087.13 and 67,446.76

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Solution

The fourth proportional to 162,145.73, 243,087.13 and 67,446.76 is: 101,115.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,145.73 : 243,087.13 = 67,446.76 : x
  2. Step 2: Convert to fraction form
    162,145.73/243,087.13 = 67,446.76/x
  3. Step 3: Cross multiply
    162,145.73x = 243,087.13 × 67,446.76
  4. Step 4: Simplify right side
    162,145.73x = 16,395,438,869.19
  5. Step 5: Solve for x
    x = 16,395,438,869.19/162,145.73
  6. Step 6: Final answer
    x = 101,115.45

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1.5x scale

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.