Home / 120,439.13-166,207.17-66,724.88

Finding the Fourth Proportional to 120,439.13, 166,207.17 and 66,724.88

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Solution

The fourth proportional to 120,439.13, 166,207.17 and 66,724.88 is: 92,080.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,439.13 : 166,207.17 = 66,724.88 : x
  2. Step 2: Convert to fraction form
    120,439.13/166,207.17 = 66,724.88/x
  3. Step 3: Cross multiply
    120,439.13x = 166,207.17 × 66,724.88
  4. Step 4: Simplify right side
    120,439.13x = 11,090,152,642.35
  5. Step 5: Solve for x
    x = 11,090,152,642.35/120,439.13
  6. Step 6: Final answer
    x = 92,080.98

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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.