Home / 125,489.30-173,176.61-68,129.15

Finding the Fourth Proportional to 125,489.30, 173,176.61 and 68,129.15

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Solution

The fourth proportional to 125,489.30, 173,176.61 and 68,129.15 is: 94,018.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,489.30 : 173,176.61 = 68,129.15 : x
  2. Step 2: Convert to fraction form
    125,489.30/173,176.61 = 68,129.15/x
  3. Step 3: Cross multiply
    125,489.30x = 173,176.61 × 68,129.15
  4. Step 4: Simplify right side
    125,489.30x = 11,798,374,032.65
  5. Step 5: Solve for x
    x = 11,798,374,032.65/125,489.30
  6. Step 6: Final answer
    x = 94,018.97

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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.