Home / 213,724.20-320,586.30-103,132.20

Finding the Fourth Proportional to 213,724.20, 320,586.30 and 103,132.20

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Solution

The fourth proportional to 213,724.20, 320,586.30 and 103,132.20 is: 154,698.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,724.20 : 320,586.30 = 103,132.20 : x
  2. Step 2: Convert to fraction form
    213,724.20/320,586.30 = 103,132.20/x
  3. Step 3: Cross multiply
    213,724.20x = 320,586.30 × 103,132.20
  4. Step 4: Simplify right side
    213,724.20x = 33,062,770,408.86
  5. Step 5: Solve for x
    x = 33,062,770,408.86/213,724.20
  6. Step 6: Final answer
    x = 154,698.30

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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.