Home / 143,927.76-198,619.80-80,263.92

Finding the Fourth Proportional to 143,927.76, 198,619.80 and 80,263.92

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Solution

The fourth proportional to 143,927.76, 198,619.80 and 80,263.92 is: 110,763.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,927.76 : 198,619.80 = 80,263.92 : x
  2. Step 2: Convert to fraction form
    143,927.76/198,619.80 = 80,263.92/x
  3. Step 3: Cross multiply
    143,927.76x = 198,619.80 × 80,263.92
  4. Step 4: Simplify right side
    143,927.76x = 15,942,003,737.62
  5. Step 5: Solve for x
    x = 15,942,003,737.62/143,927.76
  6. Step 6: Final answer
    x = 110,763.93

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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.