Home / 104,290.20-156,435.30-45,084.60

Finding the Fourth Proportional to 104,290.20, 156,435.30 and 45,084.60

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Solution

The fourth proportional to 104,290.20, 156,435.30 and 45,084.60 is: 67,626.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,290.20 : 156,435.30 = 45,084.60 : x
  2. Step 2: Convert to fraction form
    104,290.20/156,435.30 = 45,084.60/x
  3. Step 3: Cross multiply
    104,290.20x = 156,435.30 × 45,084.60
  4. Step 4: Simplify right side
    104,290.20x = 7,052,822,926.38
  5. Step 5: Solve for x
    x = 7,052,822,926.38/104,290.20
  6. Step 6: Final answer
    x = 67,626.90

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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.