Home / 154,300.20-231,335.10-84,258.60

Finding the Fourth Proportional to 154,300.20, 231,335.10 and 84,258.60

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Solution

The fourth proportional to 154,300.20, 231,335.10 and 84,258.60 is: 126,324.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,300.20 : 231,335.10 = 84,258.60 : x
  2. Step 2: Convert to fraction form
    154,300.20/231,335.10 = 84,258.60/x
  3. Step 3: Cross multiply
    154,300.20x = 231,335.10 × 84,258.60
  4. Step 4: Simplify right side
    154,300.20x = 19,491,971,656.86
  5. Step 5: Solve for x
    x = 19,491,971,656.86/154,300.20
  6. Step 6: Final answer
    x = 126,324.99

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1.5x scale

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.