Home / 132,156.92-182,293.59-78,403.88

Finding the Fourth Proportional to 132,156.92, 182,293.59 and 78,403.88

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Solution

The fourth proportional to 132,156.92, 182,293.59 and 78,403.88 is: 108,148.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,156.92 : 182,293.59 = 78,403.88 : x
  2. Step 2: Convert to fraction form
    132,156.92/182,293.59 = 78,403.88/x
  3. Step 3: Cross multiply
    132,156.92x = 182,293.59 × 78,403.88
  4. Step 4: Simplify right side
    132,156.92x = 14,292,523,843.66
  5. Step 5: Solve for x
    x = 14,292,523,843.66/132,156.92
  6. Step 6: Final answer
    x = 108,148.13

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1.5x scale

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.