Home / 217,669.20-300,362.76-122,154

Finding the Fourth Proportional to 217,669.20, 300,362.76 and 122,154

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Solution

The fourth proportional to 217,669.20, 300,362.76 and 122,154 is: 168,560.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,669.20 : 300,362.76 = 122,154 : x
  2. Step 2: Convert to fraction form
    217,669.20/300,362.76 = 122,154/x
  3. Step 3: Cross multiply
    217,669.20x = 300,362.76 × 122,154
  4. Step 4: Simplify right side
    217,669.20x = 36,690,512,585.04
  5. Step 5: Solve for x
    x = 36,690,512,585.04/217,669.20
  6. Step 6: Final answer
    x = 168,560.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.