Home / 143,923.30-198,695.32-99,800.56

Finding the Fourth Proportional to 143,923.30, 198,695.32 and 99,800.56

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Solution

The fourth proportional to 143,923.30, 198,695.32 and 99,800.56 is: 137,781.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,923.30 : 198,695.32 = 99,800.56 : x
  2. Step 2: Convert to fraction form
    143,923.30/198,695.32 = 99,800.56/x
  3. Step 3: Cross multiply
    143,923.30x = 198,695.32 × 99,800.56
  4. Step 4: Simplify right side
    143,923.30x = 19,829,904,205.38
  5. Step 5: Solve for x
    x = 19,829,904,205.38/143,923.30
  6. Step 6: Final answer
    x = 137,781.06

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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.