Home / 141,679.87-195,517.91-77,148.10

Finding the Fourth Proportional to 141,679.87, 195,517.91 and 77,148.10

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Solution

The fourth proportional to 141,679.87, 195,517.91 and 77,148.10 is: 106,464.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,679.87 : 195,517.91 = 77,148.10 : x
  2. Step 2: Convert to fraction form
    141,679.87/195,517.91 = 77,148.10/x
  3. Step 3: Cross multiply
    141,679.87x = 195,517.91 × 77,148.10
  4. Step 4: Simplify right side
    141,679.87x = 15,083,834,886.73
  5. Step 5: Solve for x
    x = 15,083,834,886.73/141,679.87
  6. Step 6: Final answer
    x = 106,464.21

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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.