Home / 187,865.20-281,132.60-116,821.30

Finding the Fourth Proportional to 187,865.20, 281,132.60 and 116,821.30

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Solution

The fourth proportional to 187,865.20, 281,132.60 and 116,821.30 is: 174,818.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,865.20 : 281,132.60 = 116,821.30 : x
  2. Step 2: Convert to fraction form
    187,865.20/281,132.60 = 116,821.30/x
  3. Step 3: Cross multiply
    187,865.20x = 281,132.60 × 116,821.30
  4. Step 4: Simplify right side
    187,865.20x = 32,842,275,804.38
  5. Step 5: Solve for x
    x = 32,842,275,804.38/187,865.20
  6. Step 6: Final answer
    x = 174,818.30

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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.