Home / 198,762.81-298,141.17-80,350.13

Finding the Fourth Proportional to 198,762.81, 298,141.17 and 80,350.13

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Solution

The fourth proportional to 198,762.81, 298,141.17 and 80,350.13 is: 120,523.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,762.81 : 298,141.17 = 80,350.13 : x
  2. Step 2: Convert to fraction form
    198,762.81/298,141.17 = 80,350.13/x
  3. Step 3: Cross multiply
    198,762.81x = 298,141.17 × 80,350.13
  4. Step 4: Simplify right side
    198,762.81x = 23,955,680,277.15
  5. Step 5: Solve for x
    x = 23,955,680,277.15/198,762.81
  6. Step 6: Final answer
    x = 120,523.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.