Home / 129,605.68-194,385.16-92,012.96

Finding the Fourth Proportional to 129,605.68, 194,385.16 and 92,012.96

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Solution

The fourth proportional to 129,605.68, 194,385.16 and 92,012.96 is: 138,002.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,605.68 : 194,385.16 = 92,012.96 : x
  2. Step 2: Convert to fraction form
    129,605.68/194,385.16 = 92,012.96/x
  3. Step 3: Cross multiply
    129,605.68x = 194,385.16 × 92,012.96
  4. Step 4: Simplify right side
    129,605.68x = 17,885,953,951.67
  5. Step 5: Solve for x
    x = 17,885,953,951.67/129,605.68
  6. Step 6: Final answer
    x = 138,002.86

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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.