Home / 137,746.20-206,273.70-90,744.60

Finding the Fourth Proportional to 137,746.20, 206,273.70 and 90,744.60

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Solution

The fourth proportional to 137,746.20, 206,273.70 and 90,744.60 is: 135,889.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,746.20 : 206,273.70 = 90,744.60 : x
  2. Step 2: Convert to fraction form
    137,746.20/206,273.70 = 90,744.60/x
  3. Step 3: Cross multiply
    137,746.20x = 206,273.70 × 90,744.60
  4. Step 4: Simplify right side
    137,746.20x = 18,718,224,397.02
  5. Step 5: Solve for x
    x = 18,718,224,397.02/137,746.20
  6. Step 6: Final answer
    x = 135,889.23

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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.