Home / 159,589.20-220,226.40-102,147.60

Finding the Fourth Proportional to 159,589.20, 220,226.40 and 102,147.60

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Solution

The fourth proportional to 159,589.20, 220,226.40 and 102,147.60 is: 140,959.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,589.20 : 220,226.40 = 102,147.60 : x
  2. Step 2: Convert to fraction form
    159,589.20/220,226.40 = 102,147.60/x
  3. Step 3: Cross multiply
    159,589.20x = 220,226.40 × 102,147.60
  4. Step 4: Simplify right side
    159,589.20x = 22,495,598,216.64
  5. Step 5: Solve for x
    x = 22,495,598,216.64/159,589.20
  6. Step 6: Final answer
    x = 140,959.40

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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.