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Finding the Fourth Proportional to 127,587.88, 175,888.76 and 89,744.68

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Solution

The fourth proportional to 127,587.88, 175,888.76 and 89,744.68 is: 123,719.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,587.88 : 175,888.76 = 89,744.68 : x
  2. Step 2: Convert to fraction form
    127,587.88/175,888.76 = 89,744.68/x
  3. Step 3: Cross multiply
    127,587.88x = 175,888.76 × 89,744.68
  4. Step 4: Simplify right side
    127,587.88x = 15,785,080,481.80
  5. Step 5: Solve for x
    x = 15,785,080,481.80/127,587.88
  6. Step 6: Final answer
    x = 123,719.28

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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.