Home / 141,350.91-195,067.97-77,690.40

Finding the Fourth Proportional to 141,350.91, 195,067.97 and 77,690.40

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Solution

The fourth proportional to 141,350.91, 195,067.97 and 77,690.40 is: 107,214.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,350.91 : 195,067.97 = 77,690.40 : x
  2. Step 2: Convert to fraction form
    141,350.91/195,067.97 = 77,690.40/x
  3. Step 3: Cross multiply
    141,350.91x = 195,067.97 × 77,690.40
  4. Step 4: Simplify right side
    141,350.91x = 15,154,908,616.49
  5. Step 5: Solve for x
    x = 15,154,908,616.49/141,350.91
  6. Step 6: Final answer
    x = 107,214.79

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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.