Home / 123,508.56-170,441.92-66,919.93

Finding the Fourth Proportional to 123,508.56, 170,441.92 and 66,919.93

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Solution

The fourth proportional to 123,508.56, 170,441.92 and 66,919.93 is: 92,349.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,508.56 : 170,441.92 = 66,919.93 : x
  2. Step 2: Convert to fraction form
    123,508.56/170,441.92 = 66,919.93/x
  3. Step 3: Cross multiply
    123,508.56x = 170,441.92 × 66,919.93
  4. Step 4: Simplify right side
    123,508.56x = 11,405,961,020.87
  5. Step 5: Solve for x
    x = 11,405,961,020.87/123,508.56
  6. Step 6: Final answer
    x = 92,349.56

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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.