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Finding the Fourth Proportional to 148,502.60, 222,710.70 and 81,974.60

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Solution

The fourth proportional to 148,502.60, 222,710.70 and 81,974.60 is: 122,938.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,502.60 : 222,710.70 = 81,974.60 : x
  2. Step 2: Convert to fraction form
    148,502.60/222,710.70 = 81,974.60/x
  3. Step 3: Cross multiply
    148,502.60x = 222,710.70 × 81,974.60
  4. Step 4: Simplify right side
    148,502.60x = 18,256,620,548.22
  5. Step 5: Solve for x
    x = 18,256,620,548.22/148,502.60
  6. Step 6: Final answer
    x = 122,938.05

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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.