Home / 141,278.30-194,963.82-77,616.15

Finding the Fourth Proportional to 141,278.30, 194,963.82 and 77,616.15

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Solution

The fourth proportional to 141,278.30, 194,963.82 and 77,616.15 is: 107,110.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,278.30 : 194,963.82 = 77,616.15 : x
  2. Step 2: Convert to fraction form
    141,278.30/194,963.82 = 77,616.15/x
  3. Step 3: Cross multiply
    141,278.30x = 194,963.82 × 77,616.15
  4. Step 4: Simplify right side
    141,278.30x = 15,132,341,097.69
  5. Step 5: Solve for x
    x = 15,132,341,097.69/141,278.30
  6. Step 6: Final answer
    x = 107,110.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.