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Finding the Fourth Proportional to 107,951.30, 148,912.89 and 63,230.66

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Solution

The fourth proportional to 107,951.30, 148,912.89 and 63,230.66 is: 87,223.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,951.30 : 148,912.89 = 63,230.66 : x
  2. Step 2: Convert to fraction form
    107,951.30/148,912.89 = 63,230.66/x
  3. Step 3: Cross multiply
    107,951.30x = 148,912.89 × 63,230.66
  4. Step 4: Simplify right side
    107,951.30x = 9,415,860,317.21
  5. Step 5: Solve for x
    x = 9,415,860,317.21/107,951.30
  6. Step 6: Final answer
    x = 87,223.22

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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.