Home / 222,115.04-306,517.60-120,140.40

Finding the Fourth Proportional to 222,115.04, 306,517.60 and 120,140.40

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Solution

The fourth proportional to 222,115.04, 306,517.60 and 120,140.40 is: 165,793.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,115.04 : 306,517.60 = 120,140.40 : x
  2. Step 2: Convert to fraction form
    222,115.04/306,517.60 = 120,140.40/x
  3. Step 3: Cross multiply
    222,115.04x = 306,517.60 × 120,140.40
  4. Step 4: Simplify right side
    222,115.04x = 36,825,147,071.04
  5. Step 5: Solve for x
    x = 36,825,147,071.04/222,115.04
  6. Step 6: Final answer
    x = 165,793.13

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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.