Home / 142,149.87-212,761.89-104,695.20

Finding the Fourth Proportional to 142,149.87, 212,761.89 and 104,695.20

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Solution

The fourth proportional to 142,149.87, 212,761.89 and 104,695.20 is: 156,701.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,149.87 : 212,761.89 = 104,695.20 : x
  2. Step 2: Convert to fraction form
    142,149.87/212,761.89 = 104,695.20/x
  3. Step 3: Cross multiply
    142,149.87x = 212,761.89 × 104,695.20
  4. Step 4: Simplify right side
    142,149.87x = 22,275,148,625.93
  5. Step 5: Solve for x
    x = 22,275,148,625.93/142,149.87
  6. Step 6: Final answer
    x = 156,701.86

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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.