Home / 129,133.85-193,700.77-40,387.82

Finding the Fourth Proportional to 129,133.85, 193,700.77 and 40,387.82

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Solution

The fourth proportional to 129,133.85, 193,700.77 and 40,387.82 is: 60,581.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,133.85 : 193,700.77 = 40,387.82 : x
  2. Step 2: Convert to fraction form
    129,133.85/193,700.77 = 40,387.82/x
  3. Step 3: Cross multiply
    129,133.85x = 193,700.77 × 40,387.82
  4. Step 4: Simplify right side
    129,133.85x = 7,823,150,763.15
  5. Step 5: Solve for x
    x = 7,823,150,763.15/129,133.85
  6. Step 6: Final answer
    x = 60,581.72

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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.