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Finding the Fourth Proportional to 141,507.52, 195,277.20 and 77,843.92

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Solution

The fourth proportional to 141,507.52, 195,277.20 and 77,843.92 is: 107,422.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,507.52 : 195,277.20 = 77,843.92 : x
  2. Step 2: Convert to fraction form
    141,507.52/195,277.20 = 77,843.92/x
  3. Step 3: Cross multiply
    141,507.52x = 195,277.20 × 77,843.92
  4. Step 4: Simplify right side
    141,507.52x = 15,201,142,734.62
  5. Step 5: Solve for x
    x = 15,201,142,734.62/141,507.52
  6. Step 6: Final answer
    x = 107,422.86

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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.