Home / 84,966.20-127,449.30-71,142.20

Finding the Fourth Proportional to 84,966.20, 127,449.30 and 71,142.20

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Solution

The fourth proportional to 84,966.20, 127,449.30 and 71,142.20 is: 106,713.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,966.20 : 127,449.30 = 71,142.20 : x
  2. Step 2: Convert to fraction form
    84,966.20/127,449.30 = 71,142.20/x
  3. Step 3: Cross multiply
    84,966.20x = 127,449.30 × 71,142.20
  4. Step 4: Simplify right side
    84,966.20x = 9,067,023,590.46
  5. Step 5: Solve for x
    x = 9,067,023,590.46/84,966.20
  6. Step 6: Final answer
    x = 106,713.30

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1.5x scale

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.