Home / 127,342.31-175,659.19-79,512.62

Finding the Fourth Proportional to 127,342.31, 175,659.19 and 79,512.62

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Solution

The fourth proportional to 127,342.31, 175,659.19 and 79,512.62 is: 109,681.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,342.31 : 175,659.19 = 79,512.62 : x
  2. Step 2: Convert to fraction form
    127,342.31/175,659.19 = 79,512.62/x
  3. Step 3: Cross multiply
    127,342.31x = 175,659.19 × 79,512.62
  4. Step 4: Simplify right side
    127,342.31x = 13,967,121,346.90
  5. Step 5: Solve for x
    x = 13,967,121,346.90/127,342.31
  6. Step 6: Final answer
    x = 109,681.71

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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.