Home / 141,443.27-195,193.10-77,781.50

Finding the Fourth Proportional to 141,443.27, 195,193.10 and 77,781.50

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Solution

The fourth proportional to 141,443.27, 195,193.10 and 77,781.50 is: 107,339.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,443.27 : 195,193.10 = 77,781.50 : x
  2. Step 2: Convert to fraction form
    141,443.27/195,193.10 = 77,781.50/x
  3. Step 3: Cross multiply
    141,443.27x = 195,193.10 × 77,781.50
  4. Step 4: Simplify right side
    141,443.27x = 15,182,412,107.65
  5. Step 5: Solve for x
    x = 15,182,412,107.65/141,443.27
  6. Step 6: Final answer
    x = 107,339.23

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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.