Home / 156,933.20-216,542.76-103,239.92

Finding the Fourth Proportional to 156,933.20, 216,542.76 and 103,239.92

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Solution

The fourth proportional to 156,933.20, 216,542.76 and 103,239.92 is: 142,454.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,933.20 : 216,542.76 = 103,239.92 : x
  2. Step 2: Convert to fraction form
    156,933.20/216,542.76 = 103,239.92/x
  3. Step 3: Cross multiply
    156,933.20x = 216,542.76 × 103,239.92
  4. Step 4: Simplify right side
    156,933.20x = 22,355,857,218.98
  5. Step 5: Solve for x
    x = 22,355,857,218.98/156,933.20
  6. Step 6: Final answer
    x = 142,454.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.