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Finding the Fourth Proportional to 101,140.70, 151,674.60 and 51,204.20

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Solution

The fourth proportional to 101,140.70, 151,674.60 and 51,204.20 is: 76,787.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,140.70 : 151,674.60 = 51,204.20 : x
  2. Step 2: Convert to fraction form
    101,140.70/151,674.60 = 51,204.20/x
  3. Step 3: Cross multiply
    101,140.70x = 151,674.60 × 51,204.20
  4. Step 4: Simplify right side
    101,140.70x = 7,766,376,553.32
  5. Step 5: Solve for x
    x = 7,766,376,553.32/101,140.70
  6. Step 6: Final answer
    x = 76,787.85

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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.