Home / 141,877.10-195,791.76-78,217.18

Finding the Fourth Proportional to 141,877.10, 195,791.76 and 78,217.18

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Solution

The fourth proportional to 141,877.10, 195,791.76 and 78,217.18 is: 107,940.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,877.10 : 195,791.76 = 78,217.18 : x
  2. Step 2: Convert to fraction form
    141,877.10/195,791.76 = 78,217.18/x
  3. Step 3: Cross multiply
    141,877.10x = 195,791.76 × 78,217.18
  4. Step 4: Simplify right side
    141,877.10x = 15,314,278,844.96
  5. Step 5: Solve for x
    x = 15,314,278,844.96/141,877.10
  6. Step 6: Final answer
    x = 107,940.45

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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.