Home / 125,635.32-173,378.43-68,275.78

Finding the Fourth Proportional to 125,635.32, 173,378.43 and 68,275.78

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Solution

The fourth proportional to 125,635.32, 173,378.43 and 68,275.78 is: 94,221.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,635.32 : 173,378.43 = 68,275.78 : x
  2. Step 2: Convert to fraction form
    125,635.32/173,378.43 = 68,275.78/x
  3. Step 3: Cross multiply
    125,635.32x = 173,378.43 × 68,275.78
  4. Step 4: Simplify right side
    125,635.32x = 11,837,546,335.15
  5. Step 5: Solve for x
    x = 11,837,546,335.15/125,635.32
  6. Step 6: Final answer
    x = 94,221.49

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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.