Home / 132,871.20-199,306.80-127,112.10

Finding the Fourth Proportional to 132,871.20, 199,306.80 and 127,112.10

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Solution

The fourth proportional to 132,871.20, 199,306.80 and 127,112.10 is: 190,668.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,871.20 : 199,306.80 = 127,112.10 : x
  2. Step 2: Convert to fraction form
    132,871.20/199,306.80 = 127,112.10/x
  3. Step 3: Cross multiply
    132,871.20x = 199,306.80 × 127,112.10
  4. Step 4: Simplify right side
    132,871.20x = 25,334,305,892.28
  5. Step 5: Solve for x
    x = 25,334,305,892.28/132,871.20
  6. Step 6: Final answer
    x = 190,668.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.