Home / 137,948.20-206,570.94-91,057.96

Finding the Fourth Proportional to 137,948.20, 206,570.94 and 91,057.96

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Solution

The fourth proportional to 137,948.20, 206,570.94 and 91,057.96 is: 136,355.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,948.20 : 206,570.94 = 91,057.96 : x
  2. Step 2: Convert to fraction form
    137,948.20/206,570.94 = 91,057.96/x
  3. Step 3: Cross multiply
    137,948.20x = 206,570.94 × 91,057.96
  4. Step 4: Simplify right side
    137,948.20x = 18,809,928,391.68
  5. Step 5: Solve for x
    x = 18,809,928,391.68/137,948.20
  6. Step 6: Final answer
    x = 136,355.01

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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.