Home / 143,842.79-198,505.68-80,173.74

Finding the Fourth Proportional to 143,842.79, 198,505.68 and 80,173.74

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Solution

The fourth proportional to 143,842.79, 198,505.68 and 80,173.74 is: 110,641.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,842.79 : 198,505.68 = 80,173.74 : x
  2. Step 2: Convert to fraction form
    143,842.79/198,505.68 = 80,173.74/x
  3. Step 3: Cross multiply
    143,842.79x = 198,505.68 × 80,173.74
  4. Step 4: Simplify right side
    143,842.79x = 15,914,942,776.84
  5. Step 5: Solve for x
    x = 15,914,942,776.84/143,842.79
  6. Step 6: Final answer
    x = 110,641.23

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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.