Home / 129,399.08-194,002.60-40,602

Finding the Fourth Proportional to 129,399.08, 194,002.60 and 40,602

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Solution

The fourth proportional to 129,399.08, 194,002.60 and 40,602 is: 60,872.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,399.08 : 194,002.60 = 40,602 : x
  2. Step 2: Convert to fraction form
    129,399.08/194,002.60 = 40,602/x
  3. Step 3: Cross multiply
    129,399.08x = 194,002.60 × 40,602
  4. Step 4: Simplify right side
    129,399.08x = 7,876,893,565.20
  5. Step 5: Solve for x
    x = 7,876,893,565.20/129,399.08
  6. Step 6: Final answer
    x = 60,872.87

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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.