Home / 129,630.12-194,445.22-31,134.12

Finding the Fourth Proportional to 129,630.12, 194,445.22 and 31,134.12

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Solution

The fourth proportional to 129,630.12, 194,445.22 and 31,134.12 is: 46,701.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,630.12 : 194,445.22 = 31,134.12 : x
  2. Step 2: Convert to fraction form
    129,630.12/194,445.22 = 31,134.12/x
  3. Step 3: Cross multiply
    129,630.12x = 194,445.22 × 31,134.12
  4. Step 4: Simplify right side
    129,630.12x = 6,053,880,812.91
  5. Step 5: Solve for x
    x = 6,053,880,812.91/129,630.12
  6. Step 6: Final answer
    x = 46,701.19

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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.