Home / 143,837.52-198,502.50-80,175.78

Finding the Fourth Proportional to 143,837.52, 198,502.50 and 80,175.78

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Solution

The fourth proportional to 143,837.52, 198,502.50 and 80,175.78 is: 110,646.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,837.52 : 198,502.50 = 80,175.78 : x
  2. Step 2: Convert to fraction form
    143,837.52/198,502.50 = 80,175.78/x
  3. Step 3: Cross multiply
    143,837.52x = 198,502.50 × 80,175.78
  4. Step 4: Simplify right side
    143,837.52x = 15,915,092,769.45
  5. Step 5: Solve for x
    x = 15,915,092,769.45/143,837.52
  6. Step 6: Final answer
    x = 110,646.32

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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.