Home / 187,864.20-281,131.10-116,820.30

Finding the Fourth Proportional to 187,864.20, 281,131.10 and 116,820.30

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Solution

The fourth proportional to 187,864.20, 281,131.10 and 116,820.30 is: 174,816.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,864.20 : 281,131.10 = 116,820.30 : x
  2. Step 2: Convert to fraction form
    187,864.20/281,131.10 = 116,820.30/x
  3. Step 3: Cross multiply
    187,864.20x = 281,131.10 × 116,820.30
  4. Step 4: Simplify right side
    187,864.20x = 32,841,819,441.33
  5. Step 5: Solve for x
    x = 32,841,819,441.33/187,864.20
  6. Step 6: Final answer
    x = 174,816.81

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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.