Home / 141,448.28-195,143.38-80,986.61

Finding the Fourth Proportional to 141,448.28, 195,143.38 and 80,986.61

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Solution

The fourth proportional to 141,448.28, 195,143.38 and 80,986.61 is: 111,729.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,448.28 : 195,143.38 = 80,986.61 : x
  2. Step 2: Convert to fraction form
    141,448.28/195,143.38 = 80,986.61/x
  3. Step 3: Cross multiply
    141,448.28x = 195,143.38 × 80,986.61
  4. Step 4: Simplify right side
    141,448.28x = 15,804,000,810.14
  5. Step 5: Solve for x
    x = 15,804,000,810.14/141,448.28
  6. Step 6: Final answer
    x = 111,729.89

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1.5x scale

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.