Home / 125,462.12-173,138.13-68,101.49

Finding the Fourth Proportional to 125,462.12, 173,138.13 and 68,101.49

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Solution

The fourth proportional to 125,462.12, 173,138.13 and 68,101.49 is: 93,980.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,462.12 : 173,138.13 = 68,101.49 : x
  2. Step 2: Convert to fraction form
    125,462.12/173,138.13 = 68,101.49/x
  3. Step 3: Cross multiply
    125,462.12x = 173,138.13 × 68,101.49
  4. Step 4: Simplify right side
    125,462.12x = 11,790,965,061.66
  5. Step 5: Solve for x
    x = 11,790,965,061.66/125,462.12
  6. Step 6: Final answer
    x = 93,980.28

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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.