Home / 129,290.43-193,874.02-45,040.24

Finding the Fourth Proportional to 129,290.43, 193,874.02 and 45,040.24

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Solution

The fourth proportional to 129,290.43, 193,874.02 and 45,040.24 is: 67,538.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,290.43 : 193,874.02 = 45,040.24 : x
  2. Step 2: Convert to fraction form
    129,290.43/193,874.02 = 45,040.24/x
  3. Step 3: Cross multiply
    129,290.43x = 193,874.02 × 45,040.24
  4. Step 4: Simplify right side
    129,290.43x = 8,732,132,311.01
  5. Step 5: Solve for x
    x = 8,732,132,311.01/129,290.43
  6. Step 6: Final answer
    x = 67,538.89

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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.