Home / 169,123.82-253,502.32-84,680.36

Finding the Fourth Proportional to 169,123.82, 253,502.32 and 84,680.36

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Solution

The fourth proportional to 169,123.82, 253,502.32 and 84,680.36 is: 126,928.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,123.82 : 253,502.32 = 84,680.36 : x
  2. Step 2: Convert to fraction form
    169,123.82/253,502.32 = 84,680.36/x
  3. Step 3: Cross multiply
    169,123.82x = 253,502.32 × 84,680.36
  4. Step 4: Simplify right side
    169,123.82x = 21,466,667,718.44
  5. Step 5: Solve for x
    x = 21,466,667,718.44/169,123.82
  6. Step 6: Final answer
    x = 126,928.71

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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.