Home / 129,810.16-194,715.28-54,910.88

Finding the Fourth Proportional to 129,810.16, 194,715.28 and 54,910.88

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Solution

The fourth proportional to 129,810.16, 194,715.28 and 54,910.88 is: 82,366.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,810.16 : 194,715.28 = 54,910.88 : x
  2. Step 2: Convert to fraction form
    129,810.16/194,715.28 = 54,910.88/x
  3. Step 3: Cross multiply
    129,810.16x = 194,715.28 × 54,910.88
  4. Step 4: Simplify right side
    129,810.16x = 10,691,987,374.25
  5. Step 5: Solve for x
    x = 10,691,987,374.25/129,810.16
  6. Step 6: Final answer
    x = 82,366.34

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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.