Home / 143,506.20-198,063.18-89,812.92

Finding the Fourth Proportional to 143,506.20, 198,063.18 and 89,812.92

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Solution

The fourth proportional to 143,506.20, 198,063.18 and 89,812.92 is: 123,957.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,506.20 : 198,063.18 = 89,812.92 : x
  2. Step 2: Convert to fraction form
    143,506.20/198,063.18 = 89,812.92/x
  3. Step 3: Cross multiply
    143,506.20x = 198,063.18 × 89,812.92
  4. Step 4: Simplify right side
    143,506.20x = 17,788,632,540.29
  5. Step 5: Solve for x
    x = 17,788,632,540.29/143,506.20
  6. Step 6: Final answer
    x = 123,957.24

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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.