Home / 129,259.20-193,887.48-50,428.80

Finding the Fourth Proportional to 129,259.20, 193,887.48 and 50,428.80

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Solution

The fourth proportional to 129,259.20, 193,887.48 and 50,428.80 is: 75,642.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,259.20 : 193,887.48 = 50,428.80 : x
  2. Step 2: Convert to fraction form
    129,259.20/193,887.48 = 50,428.80/x
  3. Step 3: Cross multiply
    129,259.20x = 193,887.48 × 50,428.80
  4. Step 4: Simplify right side
    129,259.20x = 9,777,512,951.42
  5. Step 5: Solve for x
    x = 9,777,512,951.42/129,259.20
  6. Step 6: Final answer
    x = 75,642.69

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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.