Home / 161,919.72-223,438.62-89,318.24

Finding the Fourth Proportional to 161,919.72, 223,438.62 and 89,318.24

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Solution

The fourth proportional to 161,919.72, 223,438.62 and 89,318.24 is: 123,253.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,919.72 : 223,438.62 = 89,318.24 : x
  2. Step 2: Convert to fraction form
    161,919.72/223,438.62 = 89,318.24/x
  3. Step 3: Cross multiply
    161,919.72x = 223,438.62 × 89,318.24
  4. Step 4: Simplify right side
    161,919.72x = 19,957,144,286.43
  5. Step 5: Solve for x
    x = 19,957,144,286.43/161,919.72
  6. Step 6: Final answer
    x = 123,253.33

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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.