Home / 148,373.10-222,516.45-81,845.10

Finding the Fourth Proportional to 148,373.10, 222,516.45 and 81,845.10

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Solution

The fourth proportional to 148,373.10, 222,516.45 and 81,845.10 is: 122,743.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,373.10 : 222,516.45 = 81,845.10 : x
  2. Step 2: Convert to fraction form
    148,373.10/222,516.45 = 81,845.10/x
  3. Step 3: Cross multiply
    148,373.10x = 222,516.45 × 81,845.10
  4. Step 4: Simplify right side
    148,373.10x = 18,211,881,101.90
  5. Step 5: Solve for x
    x = 18,211,881,101.90/148,373.10
  6. Step 6: Final answer
    x = 122,743.82

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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.