Home / 124,538.10-171,657.78-88,251.72

Finding the Fourth Proportional to 124,538.10, 171,657.78 and 88,251.72

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Solution

The fourth proportional to 124,538.10, 171,657.78 and 88,251.72 is: 121,642.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,538.10 : 171,657.78 = 88,251.72 : x
  2. Step 2: Convert to fraction form
    124,538.10/171,657.78 = 88,251.72/x
  3. Step 3: Cross multiply
    124,538.10x = 171,657.78 × 88,251.72
  4. Step 4: Simplify right side
    124,538.10x = 15,149,094,336.38
  5. Step 5: Solve for x
    x = 15,149,094,336.38/124,538.10
  6. Step 6: Final answer
    x = 121,642.25

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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.