Home / 143,529.44-198,052.80-79,862.72

Finding the Fourth Proportional to 143,529.44, 198,052.80 and 79,862.72

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Solution

The fourth proportional to 143,529.44, 198,052.80 and 79,862.72 is: 110,200.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,529.44 : 198,052.80 = 79,862.72 : x
  2. Step 2: Convert to fraction form
    143,529.44/198,052.80 = 79,862.72/x
  3. Step 3: Cross multiply
    143,529.44x = 198,052.80 × 79,862.72
  4. Step 4: Simplify right side
    143,529.44x = 15,817,035,311.62
  5. Step 5: Solve for x
    x = 15,817,035,311.62/143,529.44
  6. Step 6: Final answer
    x = 110,200.63

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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.