Home / 96,046.12-132,420.43-78,754.78

Finding the Fourth Proportional to 96,046.12, 132,420.43 and 78,754.78

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Solution

The fourth proportional to 96,046.12, 132,420.43 and 78,754.78 is: 108,580.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,046.12 : 132,420.43 = 78,754.78 : x
  2. Step 2: Convert to fraction form
    96,046.12/132,420.43 = 78,754.78/x
  3. Step 3: Cross multiply
    96,046.12x = 132,420.43 × 78,754.78
  4. Step 4: Simplify right side
    96,046.12x = 10,428,741,832.16
  5. Step 5: Solve for x
    x = 10,428,741,832.16/96,046.12
  6. Step 6: Final answer
    x = 108,580.56

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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.