Home / 141,549.97-195,340.32-77,889.13

Finding the Fourth Proportional to 141,549.97, 195,340.32 and 77,889.13

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Solution

The fourth proportional to 141,549.97, 195,340.32 and 77,889.13 is: 107,487.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,549.97 : 195,340.32 = 77,889.13 : x
  2. Step 2: Convert to fraction form
    141,549.97/195,340.32 = 77,889.13/x
  3. Step 3: Cross multiply
    141,549.97x = 195,340.32 × 77,889.13
  4. Step 4: Simplify right side
    141,549.97x = 15,214,887,578.72
  5. Step 5: Solve for x
    x = 15,214,887,578.72/141,549.97
  6. Step 6: Final answer
    x = 107,487.75

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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.