Home / 129,612.75-194,419.14-31,116.75

Finding the Fourth Proportional to 129,612.75, 194,419.14 and 31,116.75

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Solution

The fourth proportional to 129,612.75, 194,419.14 and 31,116.75 is: 46,675.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,612.75 : 194,419.14 = 31,116.75 : x
  2. Step 2: Convert to fraction form
    129,612.75/194,419.14 = 31,116.75/x
  3. Step 3: Cross multiply
    129,612.75x = 194,419.14 × 31,116.75
  4. Step 4: Simplify right side
    129,612.75x = 6,049,691,774.60
  5. Step 5: Solve for x
    x = 6,049,691,774.60/129,612.75
  6. Step 6: Final answer
    x = 46,675.13

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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.