Home / 137,947.20-206,569.44-91,056.96

Finding the Fourth Proportional to 137,947.20, 206,569.44 and 91,056.96

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Solution

The fourth proportional to 137,947.20, 206,569.44 and 91,056.96 is: 136,353.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,947.20 : 206,569.44 = 91,056.96 : x
  2. Step 2: Convert to fraction form
    137,947.20/206,569.44 = 91,056.96/x
  3. Step 3: Cross multiply
    137,947.20x = 206,569.44 × 91,056.96
  4. Step 4: Simplify right side
    137,947.20x = 18,809,585,235.30
  5. Step 5: Solve for x
    x = 18,809,585,235.30/137,947.20
  6. Step 6: Final answer
    x = 136,353.51

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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.