Home / 143,876.50-198,575.22-90,207.52

Finding the Fourth Proportional to 143,876.50, 198,575.22 and 90,207.52

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Solution

The fourth proportional to 143,876.50, 198,575.22 and 90,207.52 is: 124,502.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,876.50 : 198,575.22 = 90,207.52 : x
  2. Step 2: Convert to fraction form
    143,876.50/198,575.22 = 90,207.52/x
  3. Step 3: Cross multiply
    143,876.50x = 198,575.22 × 90,207.52
  4. Step 4: Simplify right side
    143,876.50x = 17,912,978,129.65
  5. Step 5: Solve for x
    x = 17,912,978,129.65/143,876.50
  6. Step 6: Final answer
    x = 124,502.46

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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.