Home / 125,335.60-172,961.94-68,747.20

Finding the Fourth Proportional to 125,335.60, 172,961.94 and 68,747.20

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Solution

The fourth proportional to 125,335.60, 172,961.94 and 68,747.20 is: 94,870.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,335.60 : 172,961.94 = 68,747.20 : x
  2. Step 2: Convert to fraction form
    125,335.60/172,961.94 = 68,747.20/x
  3. Step 3: Cross multiply
    125,335.60x = 172,961.94 × 68,747.20
  4. Step 4: Simplify right side
    125,335.60x = 11,890,649,081.57
  5. Step 5: Solve for x
    x = 11,890,649,081.57/125,335.60
  6. Step 6: Final answer
    x = 94,870.48

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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.