Home / 147,452.20-203,487.78-90,874.60

Finding the Fourth Proportional to 147,452.20, 203,487.78 and 90,874.60

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Solution

The fourth proportional to 147,452.20, 203,487.78 and 90,874.60 is: 125,409.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,452.20 : 203,487.78 = 90,874.60 : x
  2. Step 2: Convert to fraction form
    147,452.20/203,487.78 = 90,874.60/x
  3. Step 3: Cross multiply
    147,452.20x = 203,487.78 × 90,874.60
  4. Step 4: Simplify right side
    147,452.20x = 18,491,870,612.39
  5. Step 5: Solve for x
    x = 18,491,870,612.39/147,452.20
  6. Step 6: Final answer
    x = 125,409.26

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1.5x scale

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.