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Finding the Fourth Proportional to 148,614.63, 222,541.35 and 81,980.70

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Solution

The fourth proportional to 148,614.63, 222,541.35 and 81,980.70 is: 122,761.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,614.63 : 222,541.35 = 81,980.70 : x
  2. Step 2: Convert to fraction form
    148,614.63/222,541.35 = 81,980.70/x
  3. Step 3: Cross multiply
    148,614.63x = 222,541.35 × 81,980.70
  4. Step 4: Simplify right side
    148,614.63x = 18,244,095,651.95
  5. Step 5: Solve for x
    x = 18,244,095,651.95/148,614.63
  6. Step 6: Final answer
    x = 122,761.10

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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.