Home / 187,786.78-281,304.96-112,866.46

Finding the Fourth Proportional to 187,786.78, 281,304.96 and 112,866.46

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Solution

The fourth proportional to 187,786.78, 281,304.96 and 112,866.46 is: 169,074.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,786.78 : 281,304.96 = 112,866.46 : x
  2. Step 2: Convert to fraction form
    187,786.78/281,304.96 = 112,866.46/x
  3. Step 3: Cross multiply
    187,786.78x = 281,304.96 × 112,866.46
  4. Step 4: Simplify right side
    187,786.78x = 31,749,895,015.64
  5. Step 5: Solve for x
    x = 31,749,895,015.64/187,786.78
  6. Step 6: Final answer
    x = 169,074.18

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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.