Home / 143,587.23-198,146.96-79,923.66

Finding the Fourth Proportional to 143,587.23, 198,146.96 and 79,923.66

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Solution

The fourth proportional to 143,587.23, 198,146.96 and 79,923.66 is: 110,292.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,587.23 : 198,146.96 = 79,923.66 : x
  2. Step 2: Convert to fraction form
    143,587.23/198,146.96 = 79,923.66/x
  3. Step 3: Cross multiply
    143,587.23x = 198,146.96 × 79,923.66
  4. Step 4: Simplify right side
    143,587.23x = 15,836,629,861.46
  5. Step 5: Solve for x
    x = 15,836,629,861.46/143,587.23
  6. Step 6: Final answer
    x = 110,292.75

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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.