Home / 149,694.16-206,572.78-89,233.60

Finding the Fourth Proportional to 149,694.16, 206,572.78 and 89,233.60

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Solution

The fourth proportional to 149,694.16, 206,572.78 and 89,233.60 is: 123,139.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,694.16 : 206,572.78 = 89,233.60 : x
  2. Step 2: Convert to fraction form
    149,694.16/206,572.78 = 89,233.60/x
  3. Step 3: Cross multiply
    149,694.16x = 206,572.78 × 89,233.60
  4. Step 4: Simplify right side
    149,694.16x = 18,433,232,821.41
  5. Step 5: Solve for x
    x = 18,433,232,821.41/149,694.16
  6. Step 6: Final answer
    x = 123,139.29

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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.