Home / 143,572.87-198,304.68-105,277.15

Finding the Fourth Proportional to 143,572.87, 198,304.68 and 105,277.15

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Solution

The fourth proportional to 143,572.87, 198,304.68 and 105,277.15 is: 145,410.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,572.87 : 198,304.68 = 105,277.15 : x
  2. Step 2: Convert to fraction form
    143,572.87/198,304.68 = 105,277.15/x
  3. Step 3: Cross multiply
    143,572.87x = 198,304.68 × 105,277.15
  4. Step 4: Simplify right side
    143,572.87x = 20,876,951,542.06
  5. Step 5: Solve for x
    x = 20,876,951,542.06/143,572.87
  6. Step 6: Final answer
    x = 145,410.14

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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.