Home / 132,542.47-182,838.90-78,789.25

Finding the Fourth Proportional to 132,542.47, 182,838.90 and 78,789.25

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Solution

The fourth proportional to 132,542.47, 182,838.90 and 78,789.25 is: 108,687.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,542.47 : 182,838.90 = 78,789.25 : x
  2. Step 2: Convert to fraction form
    132,542.47/182,838.90 = 78,789.25/x
  3. Step 3: Cross multiply
    132,542.47x = 182,838.90 × 78,789.25
  4. Step 4: Simplify right side
    132,542.47x = 14,405,739,801.83
  5. Step 5: Solve for x
    x = 14,405,739,801.83/132,542.47
  6. Step 6: Final answer
    x = 108,687.73

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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.