Home / 129,278.33-193,869.49-45,016.86

Finding the Fourth Proportional to 129,278.33, 193,869.49 and 45,016.86

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Solution

The fourth proportional to 129,278.33, 193,869.49 and 45,016.86 is: 67,508.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,278.33 : 193,869.49 = 45,016.86 : x
  2. Step 2: Convert to fraction form
    129,278.33/193,869.49 = 45,016.86/x
  3. Step 3: Cross multiply
    129,278.33x = 193,869.49 × 45,016.86
  4. Step 4: Simplify right side
    129,278.33x = 8,727,395,689.60
  5. Step 5: Solve for x
    x = 8,727,395,689.60/129,278.33
  6. Step 6: Final answer
    x = 67,508.58

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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.