Home / 187,388.34-281,015.31-54,241.05

Finding the Fourth Proportional to 187,388.34, 281,015.31 and 54,241.05

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Solution

The fourth proportional to 187,388.34, 281,015.31 and 54,241.05 is: 81,342.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,388.34 : 281,015.31 = 54,241.05 : x
  2. Step 2: Convert to fraction form
    187,388.34/281,015.31 = 54,241.05/x
  3. Step 3: Cross multiply
    187,388.34x = 281,015.31 × 54,241.05
  4. Step 4: Simplify right side
    187,388.34x = 15,242,565,480.48
  5. Step 5: Solve for x
    x = 15,242,565,480.48/187,388.34
  6. Step 6: Final answer
    x = 81,342.12

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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.