Home / 134,716.20-185,920.79-77,363.03

Finding the Fourth Proportional to 134,716.20, 185,920.79 and 77,363.03

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Solution

The fourth proportional to 134,716.20, 185,920.79 and 77,363.03 is: 106,768.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,716.20 : 185,920.79 = 77,363.03 : x
  2. Step 2: Convert to fraction form
    134,716.20/185,920.79 = 77,363.03/x
  3. Step 3: Cross multiply
    134,716.20x = 185,920.79 × 77,363.03
  4. Step 4: Simplify right side
    134,716.20x = 14,383,394,337.97
  5. Step 5: Solve for x
    x = 14,383,394,337.97/134,716.20
  6. Step 6: Final answer
    x = 106,768.11

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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.