Home / 143,862.06-198,529.65-80,203.96

Finding the Fourth Proportional to 143,862.06, 198,529.65 and 80,203.96

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Solution

The fourth proportional to 143,862.06, 198,529.65 and 80,203.96 is: 110,681.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,862.06 : 198,529.65 = 80,203.96 : x
  2. Step 2: Convert to fraction form
    143,862.06/198,529.65 = 80,203.96/x
  3. Step 3: Cross multiply
    143,862.06x = 198,529.65 × 80,203.96
  4. Step 4: Simplify right side
    143,862.06x = 15,922,864,107.41
  5. Step 5: Solve for x
    x = 15,922,864,107.41/143,862.06
  6. Step 6: Final answer
    x = 110,681.47

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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.