Home / 141,489.64-195,251.56-77,827.40

Finding the Fourth Proportional to 141,489.64, 195,251.56 and 77,827.40

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Solution

The fourth proportional to 141,489.64, 195,251.56 and 77,827.40 is: 107,399.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,489.64 : 195,251.56 = 77,827.40 : x
  2. Step 2: Convert to fraction form
    141,489.64/195,251.56 = 77,827.40/x
  3. Step 3: Cross multiply
    141,489.64x = 195,251.56 × 77,827.40
  4. Step 4: Simplify right side
    141,489.64x = 15,195,921,260.74
  5. Step 5: Solve for x
    x = 15,195,921,260.74/141,489.64
  6. Step 6: Final answer
    x = 107,399.53

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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.