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Finding the Fourth Proportional to 148,679.71, 205,084.67 and 88,207.54

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Solution

The fourth proportional to 148,679.71, 205,084.67 and 88,207.54 is: 121,671.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,679.71 : 205,084.67 = 88,207.54 : x
  2. Step 2: Convert to fraction form
    148,679.71/205,084.67 = 88,207.54/x
  3. Step 3: Cross multiply
    148,679.71x = 205,084.67 × 88,207.54
  4. Step 4: Simplify right side
    148,679.71x = 18,090,012,765.95
  5. Step 5: Solve for x
    x = 18,090,012,765.95/148,679.71
  6. Step 6: Final answer
    x = 121,671.03

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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.