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Finding the Fourth Proportional to 101,122.40, 151,902.30 and 71,597.90

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Solution

The fourth proportional to 101,122.40, 151,902.30 and 71,597.90 is: 107,551.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,122.40 : 151,902.30 = 71,597.90 : x
  2. Step 2: Convert to fraction form
    101,122.40/151,902.30 = 71,597.90/x
  3. Step 3: Cross multiply
    101,122.40x = 151,902.30 × 71,597.90
  4. Step 4: Simplify right side
    101,122.40x = 10,875,885,685.17
  5. Step 5: Solve for x
    x = 10,875,885,685.17/101,122.40
  6. Step 6: Final answer
    x = 107,551.70

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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.