Home / 141,320.31-195,012.86-80,891.43

Finding the Fourth Proportional to 141,320.31, 195,012.86 and 80,891.43

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Solution

The fourth proportional to 141,320.31, 195,012.86 and 80,891.43 is: 111,624.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,320.31 : 195,012.86 = 80,891.43 : x
  2. Step 2: Convert to fraction form
    141,320.31/195,012.86 = 80,891.43/x
  3. Step 3: Cross multiply
    141,320.31x = 195,012.86 × 80,891.43
  4. Step 4: Simplify right side
    141,320.31x = 15,774,868,709.33
  5. Step 5: Solve for x
    x = 15,774,868,709.33/141,320.31
  6. Step 6: Final answer
    x = 111,624.92

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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.