Home / 141,589.25-195,394.55-77,928.51

Finding the Fourth Proportional to 141,589.25, 195,394.55 and 77,928.51

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Solution

The fourth proportional to 141,589.25, 195,394.55 and 77,928.51 is: 107,542.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,589.25 : 195,394.55 = 77,928.51 : x
  2. Step 2: Convert to fraction form
    141,589.25/195,394.55 = 77,928.51/x
  3. Step 3: Cross multiply
    141,589.25x = 195,394.55 × 77,928.51
  4. Step 4: Simplify right side
    141,589.25x = 15,226,806,143.62
  5. Step 5: Solve for x
    x = 15,226,806,143.62/141,589.25
  6. Step 6: Final answer
    x = 107,542.11

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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.