Home / 137,060.20-205,590.30-74,074.60

Finding the Fourth Proportional to 137,060.20, 205,590.30 and 74,074.60

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Solution

The fourth proportional to 137,060.20, 205,590.30 and 74,074.60 is: 111,111.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,060.20 : 205,590.30 = 74,074.60 : x
  2. Step 2: Convert to fraction form
    137,060.20/205,590.30 = 74,074.60/x
  3. Step 3: Cross multiply
    137,060.20x = 205,590.30 × 74,074.60
  4. Step 4: Simplify right side
    137,060.20x = 15,229,019,236.38
  5. Step 5: Solve for x
    x = 15,229,019,236.38/137,060.20
  6. Step 6: Final answer
    x = 111,111.90

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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.