Home / 100,933.56-151,228.17-71,294.31

Finding the Fourth Proportional to 100,933.56, 151,228.17 and 71,294.31

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Solution

The fourth proportional to 100,933.56, 151,228.17 and 71,294.31 is: 106,819.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,933.56 : 151,228.17 = 71,294.31 : x
  2. Step 2: Convert to fraction form
    100,933.56/151,228.17 = 71,294.31/x
  3. Step 3: Cross multiply
    100,933.56x = 151,228.17 × 71,294.31
  4. Step 4: Simplify right side
    100,933.56x = 10,781,708,032.71
  5. Step 5: Solve for x
    x = 10,781,708,032.71/100,933.56
  6. Step 6: Final answer
    x = 106,819.85

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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.