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Finding the Fourth Proportional to 126,018.88, 173,905.53 and 68,658.04

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Solution

The fourth proportional to 126,018.88, 173,905.53 and 68,658.04 is: 94,747.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,018.88 : 173,905.53 = 68,658.04 : x
  2. Step 2: Convert to fraction form
    126,018.88/173,905.53 = 68,658.04/x
  3. Step 3: Cross multiply
    126,018.88x = 173,905.53 × 68,658.04
  4. Step 4: Simplify right side
    126,018.88x = 11,940,012,834.96
  5. Step 5: Solve for x
    x = 11,940,012,834.96/126,018.88
  6. Step 6: Final answer
    x = 94,747.81

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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.