Home / 143,711.21-198,327.62-80,049.06

Finding the Fourth Proportional to 143,711.21, 198,327.62 and 80,049.06

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Solution

The fourth proportional to 143,711.21, 198,327.62 and 80,049.06 is: 110,471.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,711.21 : 198,327.62 = 80,049.06 : x
  2. Step 2: Convert to fraction form
    143,711.21/198,327.62 = 80,049.06/x
  3. Step 3: Cross multiply
    143,711.21x = 198,327.62 × 80,049.06
  4. Step 4: Simplify right side
    143,711.21x = 15,875,939,753.16
  5. Step 5: Solve for x
    x = 15,875,939,753.16/143,711.21
  6. Step 6: Final answer
    x = 110,471.13

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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.