Home / 187,435.20-281,167.38-54,317.37

Finding the Fourth Proportional to 187,435.20, 281,167.38 and 54,317.37

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Solution

The fourth proportional to 187,435.20, 281,167.38 and 54,317.37 is: 81,480.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,435.20 : 281,167.38 = 54,317.37 : x
  2. Step 2: Convert to fraction form
    187,435.20/281,167.38 = 54,317.37/x
  3. Step 3: Cross multiply
    187,435.20x = 281,167.38 × 54,317.37
  4. Step 4: Simplify right side
    187,435.20x = 15,272,272,611.39
  5. Step 5: Solve for x
    x = 15,272,272,611.39/187,435.20
  6. Step 6: Final answer
    x = 81,480.28

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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.