Home / 91,884.12-138,653.25-88,589.04

Finding the Fourth Proportional to 91,884.12, 138,653.25 and 88,589.04

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Solution

The fourth proportional to 91,884.12, 138,653.25 and 88,589.04 is: 133,680.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,884.12 : 138,653.25 = 88,589.04 : x
  2. Step 2: Convert to fraction form
    91,884.12/138,653.25 = 88,589.04/x
  3. Step 3: Cross multiply
    91,884.12x = 138,653.25 × 88,589.04
  4. Step 4: Simplify right side
    91,884.12x = 12,283,158,310.38
  5. Step 5: Solve for x
    x = 12,283,158,310.38/91,884.12
  6. Step 6: Final answer
    x = 133,680.97

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.