Home / 129,610.75-194,416.13-31,114.75

Finding the Fourth Proportional to 129,610.75, 194,416.13 and 31,114.75

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Solution

The fourth proportional to 129,610.75, 194,416.13 and 31,114.75 is: 46,672.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,610.75 : 194,416.13 = 31,114.75 : x
  2. Step 2: Convert to fraction form
    129,610.75/194,416.13 = 31,114.75/x
  3. Step 3: Cross multiply
    129,610.75x = 194,416.13 × 31,114.75
  4. Step 4: Simplify right side
    129,610.75x = 6,049,209,280.92
  5. Step 5: Solve for x
    x = 6,049,209,280.92/129,610.75
  6. Step 6: Final answer
    x = 46,672.13

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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.