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Finding the Fourth Proportional to 148,125.97, 222,188.96 and 81,531.82

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Solution

The fourth proportional to 148,125.97, 222,188.96 and 81,531.82 is: 122,297.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,125.97 : 222,188.96 = 81,531.82 : x
  2. Step 2: Convert to fraction form
    148,125.97/222,188.96 = 81,531.82/x
  3. Step 3: Cross multiply
    148,125.97x = 222,188.96 × 81,531.82
  4. Step 4: Simplify right side
    148,125.97x = 18,115,470,292.71
  5. Step 5: Solve for x
    x = 18,115,470,292.71/148,125.97
  6. Step 6: Final answer
    x = 122,297.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.