Home / 127,049.23-175,335.20-76,764.43

Finding the Fourth Proportional to 127,049.23, 175,335.20 and 76,764.43

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Solution

The fourth proportional to 127,049.23, 175,335.20 and 76,764.43 is: 105,939.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,049.23 : 175,335.20 = 76,764.43 : x
  2. Step 2: Convert to fraction form
    127,049.23/175,335.20 = 76,764.43/x
  3. Step 3: Cross multiply
    127,049.23x = 175,335.20 × 76,764.43
  4. Step 4: Simplify right side
    127,049.23x = 13,459,506,686.94
  5. Step 5: Solve for x
    x = 13,459,506,686.94/127,049.23
  6. Step 6: Final answer
    x = 105,939.30

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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.