Home / 143,687.68-198,220.32-111,637.24

Finding the Fourth Proportional to 143,687.68, 198,220.32 and 111,637.24

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Solution

The fourth proportional to 143,687.68, 198,220.32 and 111,637.24 is: 154,006.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,687.68 : 198,220.32 = 111,637.24 : x
  2. Step 2: Convert to fraction form
    143,687.68/198,220.32 = 111,637.24/x
  3. Step 3: Cross multiply
    143,687.68x = 198,220.32 × 111,637.24
  4. Step 4: Simplify right side
    143,687.68x = 22,128,769,436.72
  5. Step 5: Solve for x
    x = 22,128,769,436.72/143,687.68
  6. Step 6: Final answer
    x = 154,006.03

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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.