Home / 129,998.55-194,959.05-55,117.47

Finding the Fourth Proportional to 129,998.55, 194,959.05 and 55,117.47

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Solution

The fourth proportional to 129,998.55, 194,959.05 and 55,117.47 is: 82,659.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,998.55 : 194,959.05 = 55,117.47 : x
  2. Step 2: Convert to fraction form
    129,998.55/194,959.05 = 55,117.47/x
  3. Step 3: Cross multiply
    129,998.55x = 194,959.05 × 55,117.47
  4. Step 4: Simplify right side
    129,998.55x = 10,745,649,589.60
  5. Step 5: Solve for x
    x = 10,745,649,589.60/129,998.55
  6. Step 6: Final answer
    x = 82,659.76

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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.