Home / 143,149.20-214,759.92-101,111.76

Finding the Fourth Proportional to 143,149.20, 214,759.92 and 101,111.76

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Solution

The fourth proportional to 143,149.20, 214,759.92 and 101,111.76 is: 151,693.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,149.20 : 214,759.92 = 101,111.76 : x
  2. Step 2: Convert to fraction form
    143,149.20/214,759.92 = 101,111.76/x
  3. Step 3: Cross multiply
    143,149.20x = 214,759.92 × 101,111.76
  4. Step 4: Simplify right side
    143,149.20x = 21,714,753,488.66
  5. Step 5: Solve for x
    x = 21,714,753,488.66/143,149.20
  6. Step 6: Final answer
    x = 151,693.15

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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.