Home / 132,062.31-182,217.96-78,364.80

Finding the Fourth Proportional to 132,062.31, 182,217.96 and 78,364.80

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Solution

The fourth proportional to 132,062.31, 182,217.96 and 78,364.80 is: 108,126.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,062.31 : 182,217.96 = 78,364.80 : x
  2. Step 2: Convert to fraction form
    132,062.31/182,217.96 = 78,364.80/x
  3. Step 3: Cross multiply
    132,062.31x = 182,217.96 × 78,364.80
  4. Step 4: Simplify right side
    132,062.31x = 14,279,473,991.81
  5. Step 5: Solve for x
    x = 14,279,473,991.81/132,062.31
  6. Step 6: Final answer
    x = 108,126.79

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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.