Home / 143,888.56-198,830.26-136,974.94

Finding the Fourth Proportional to 143,888.56, 198,830.26 and 136,974.94

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Solution

The fourth proportional to 143,888.56, 198,830.26 and 136,974.94 is: 189,276.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,888.56 : 198,830.26 = 136,974.94 : x
  2. Step 2: Convert to fraction form
    143,888.56/198,830.26 = 136,974.94/x
  3. Step 3: Cross multiply
    143,888.56x = 198,830.26 × 136,974.94
  4. Step 4: Simplify right side
    143,888.56x = 27,234,762,933.68
  5. Step 5: Solve for x
    x = 27,234,762,933.68/143,888.56
  6. Step 6: Final answer
    x = 189,276.78

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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.