Home / 220,577.20-330,647.10-108,165.40

Finding the Fourth Proportional to 220,577.20, 330,647.10 and 108,165.40

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Solution

The fourth proportional to 220,577.20, 330,647.10 and 108,165.40 is: 162,140.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,577.20 : 330,647.10 = 108,165.40 : x
  2. Step 2: Convert to fraction form
    220,577.20/330,647.10 = 108,165.40/x
  3. Step 3: Cross multiply
    220,577.20x = 330,647.10 × 108,165.40
  4. Step 4: Simplify right side
    220,577.20x = 35,764,575,830.34
  5. Step 5: Solve for x
    x = 35,764,575,830.34/220,577.20
  6. Step 6: Final answer
    x = 162,140.86

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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.