Home / 129,278.03-193,917.07-40,538.38

Finding the Fourth Proportional to 129,278.03, 193,917.07 and 40,538.38

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Solution

The fourth proportional to 129,278.03, 193,917.07 and 40,538.38 is: 60,807.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,278.03 : 193,917.07 = 40,538.38 : x
  2. Step 2: Convert to fraction form
    129,278.03/193,917.07 = 40,538.38/x
  3. Step 3: Cross multiply
    129,278.03x = 193,917.07 × 40,538.38
  4. Step 4: Simplify right side
    129,278.03x = 7,861,083,872.15
  5. Step 5: Solve for x
    x = 7,861,083,872.15/129,278.03
  6. Step 6: Final answer
    x = 60,807.58

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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.