Home / 129,509.46-194,266.62-40,765.86

Finding the Fourth Proportional to 129,509.46, 194,266.62 and 40,765.86

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Solution

The fourth proportional to 129,509.46, 194,266.62 and 40,765.86 is: 61,149.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,509.46 : 194,266.62 = 40,765.86 : x
  2. Step 2: Convert to fraction form
    129,509.46/194,266.62 = 40,765.86/x
  3. Step 3: Cross multiply
    129,509.46x = 194,266.62 × 40,765.86
  4. Step 4: Simplify right side
    129,509.46x = 7,919,445,833.59
  5. Step 5: Solve for x
    x = 7,919,445,833.59/129,509.46
  6. Step 6: Final answer
    x = 61,149.55

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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.