Home / 141,443.52-195,193.44-77,781.75

Finding the Fourth Proportional to 141,443.52, 195,193.44 and 77,781.75

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Solution

The fourth proportional to 141,443.52, 195,193.44 and 77,781.75 is: 107,339.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,443.52 : 195,193.44 = 77,781.75 : x
  2. Step 2: Convert to fraction form
    141,443.52/195,193.44 = 77,781.75/x
  3. Step 3: Cross multiply
    141,443.52x = 195,193.44 × 77,781.75
  4. Step 4: Simplify right side
    141,443.52x = 15,182,487,351.72
  5. Step 5: Solve for x
    x = 15,182,487,351.72/141,443.52
  6. Step 6: Final answer
    x = 107,339.58

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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.