Home / 141,433.28-195,177.92-77,771.07

Finding the Fourth Proportional to 141,433.28, 195,177.92 and 77,771.07

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Solution

The fourth proportional to 141,433.28, 195,177.92 and 77,771.07 is: 107,324.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,433.28 : 195,177.92 = 77,771.07 : x
  2. Step 2: Convert to fraction form
    141,433.28/195,177.92 = 77,771.07/x
  3. Step 3: Cross multiply
    141,433.28x = 195,177.92 × 77,771.07
  4. Step 4: Simplify right side
    141,433.28x = 15,179,196,385.68
  5. Step 5: Solve for x
    x = 15,179,196,385.68/141,433.28
  6. Step 6: Final answer
    x = 107,324.08

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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.