Home / 147,451.20-203,486.40-90,873.60

Finding the Fourth Proportional to 147,451.20, 203,486.40 and 90,873.60

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Solution

The fourth proportional to 147,451.20, 203,486.40 and 90,873.60 is: 125,407.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,451.20 : 203,486.40 = 90,873.60 : x
  2. Step 2: Convert to fraction form
    147,451.20/203,486.40 = 90,873.60/x
  3. Step 3: Cross multiply
    147,451.20x = 203,486.40 × 90,873.60
  4. Step 4: Simplify right side
    147,451.20x = 18,491,541,719.04
  5. Step 5: Solve for x
    x = 18,491,541,719.04/147,451.20
  6. Step 6: Final answer
    x = 125,407.88

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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.