Home / 148,615.04-222,541.92-81,981.06

Finding the Fourth Proportional to 148,615.04, 222,541.92 and 81,981.06

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Solution

The fourth proportional to 148,615.04, 222,541.92 and 81,981.06 is: 122,761.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,615.04 : 222,541.92 = 81,981.06 : x
  2. Step 2: Convert to fraction form
    148,615.04/222,541.92 = 81,981.06/x
  3. Step 3: Cross multiply
    148,615.04x = 222,541.92 × 81,981.06
  4. Step 4: Simplify right side
    148,615.04x = 18,244,222,496.04
  5. Step 5: Solve for x
    x = 18,244,222,496.04/148,615.04
  6. Step 6: Final answer
    x = 122,761.62

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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.