Home / 149,546.28-206,366.60-89,115.60

Finding the Fourth Proportional to 149,546.28, 206,366.60 and 89,115.60

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Solution

The fourth proportional to 149,546.28, 206,366.60 and 89,115.60 is: 122,975.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,546.28 : 206,366.60 = 89,115.60 : x
  2. Step 2: Convert to fraction form
    149,546.28/206,366.60 = 89,115.60/x
  3. Step 3: Cross multiply
    149,546.28x = 206,366.60 × 89,115.60
  4. Step 4: Simplify right side
    149,546.28x = 18,390,483,378.96
  5. Step 5: Solve for x
    x = 18,390,483,378.96/149,546.28
  6. Step 6: Final answer
    x = 122,975.20

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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.