Home / 127,634.90-191,452.38-57,432.20

Finding the Fourth Proportional to 127,634.90, 191,452.38 and 57,432.20

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Solution

The fourth proportional to 127,634.90, 191,452.38 and 57,432.20 is: 86,148.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,634.90 : 191,452.38 = 57,432.20 : x
  2. Step 2: Convert to fraction form
    127,634.90/191,452.38 = 57,432.20/x
  3. Step 3: Cross multiply
    127,634.90x = 191,452.38 × 57,432.20
  4. Step 4: Simplify right side
    127,634.90x = 10,995,531,378.64
  5. Step 5: Solve for x
    x = 10,995,531,378.64/127,634.90
  6. Step 6: Final answer
    x = 86,148.31

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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.