Home / 187,400.20-281,003.10-69,010.60

Finding the Fourth Proportional to 187,400.20, 281,003.10 and 69,010.60

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Solution

The fourth proportional to 187,400.20, 281,003.10 and 69,010.60 is: 103,480.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,400.20 : 281,003.10 = 69,010.60 : x
  2. Step 2: Convert to fraction form
    187,400.20/281,003.10 = 69,010.60/x
  3. Step 3: Cross multiply
    187,400.20x = 281,003.10 × 69,010.60
  4. Step 4: Simplify right side
    187,400.20x = 19,392,192,532.86
  5. Step 5: Solve for x
    x = 19,392,192,532.86/187,400.20
  6. Step 6: Final answer
    x = 103,480.11

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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.