Home / 141,857.22-195,780.69-81,446.79

Finding the Fourth Proportional to 141,857.22, 195,780.69 and 81,446.79

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Solution

The fourth proportional to 141,857.22, 195,780.69 and 81,446.79 is: 112,406.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,857.22 : 195,780.69 = 81,446.79 : x
  2. Step 2: Convert to fraction form
    141,857.22/195,780.69 = 81,446.79/x
  3. Step 3: Cross multiply
    141,857.22x = 195,780.69 × 81,446.79
  4. Step 4: Simplify right side
    141,857.22x = 15,945,708,744.49
  5. Step 5: Solve for x
    x = 15,945,708,744.49/141,857.22
  6. Step 6: Final answer
    x = 112,406.75

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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.