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Finding the Fourth Proportional to 101,318.68, 151,885.02 and 38,942.20

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Solution

The fourth proportional to 101,318.68, 151,885.02 and 38,942.20 is: 58,377.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,318.68 : 151,885.02 = 38,942.20 : x
  2. Step 2: Convert to fraction form
    101,318.68/151,885.02 = 38,942.20/x
  3. Step 3: Cross multiply
    101,318.68x = 151,885.02 × 38,942.20
  4. Step 4: Simplify right side
    101,318.68x = 5,914,736,825.84
  5. Step 5: Solve for x
    x = 5,914,736,825.84/101,318.68
  6. Step 6: Final answer
    x = 58,377.56

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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.