Home / 132,151.67-182,286.35-78,398.63

Finding the Fourth Proportional to 132,151.67, 182,286.35 and 78,398.63

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Solution

The fourth proportional to 132,151.67, 182,286.35 and 78,398.63 is: 108,140.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,151.67 : 182,286.35 = 78,398.63 : x
  2. Step 2: Convert to fraction form
    132,151.67/182,286.35 = 78,398.63/x
  3. Step 3: Cross multiply
    132,151.67x = 182,286.35 × 78,398.63
  4. Step 4: Simplify right side
    132,151.67x = 14,290,998,804.28
  5. Step 5: Solve for x
    x = 14,290,998,804.28/132,151.67
  6. Step 6: Final answer
    x = 108,140.89

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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.