Home / 124,517.78-171,834.18-67,928.75

Finding the Fourth Proportional to 124,517.78, 171,834.18 and 67,928.75

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Solution

The fourth proportional to 124,517.78, 171,834.18 and 67,928.75 is: 93,741.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,517.78 : 171,834.18 = 67,928.75 : x
  2. Step 2: Convert to fraction form
    124,517.78/171,834.18 = 67,928.75/x
  3. Step 3: Cross multiply
    124,517.78x = 171,834.18 × 67,928.75
  4. Step 4: Simplify right side
    124,517.78x = 11,672,481,054.68
  5. Step 5: Solve for x
    x = 11,672,481,054.68/124,517.78
  6. Step 6: Final answer
    x = 93,741.48

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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.