Home / 126,839.22-175,039.41-76,528.50

Finding the Fourth Proportional to 126,839.22, 175,039.41 and 76,528.50

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Solution

The fourth proportional to 126,839.22, 175,039.41 and 76,528.50 is: 105,610.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,839.22 : 175,039.41 = 76,528.50 : x
  2. Step 2: Convert to fraction form
    126,839.22/175,039.41 = 76,528.50/x
  3. Step 3: Cross multiply
    126,839.22x = 175,039.41 × 76,528.50
  4. Step 4: Simplify right side
    126,839.22x = 13,395,503,488.19
  5. Step 5: Solve for x
    x = 13,395,503,488.19/126,839.22
  6. Step 6: Final answer
    x = 105,610.11

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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.