Home / 187,286.46-280,971.32-87,392.17

Finding the Fourth Proportional to 187,286.46, 280,971.32 and 87,392.17

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Solution

The fourth proportional to 187,286.46, 280,971.32 and 87,392.17 is: 131,107.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,286.46 : 280,971.32 = 87,392.17 : x
  2. Step 2: Convert to fraction form
    187,286.46/280,971.32 = 87,392.17/x
  3. Step 3: Cross multiply
    187,286.46x = 280,971.32 × 87,392.17
  4. Step 4: Simplify right side
    187,286.46x = 24,554,693,362.56
  5. Step 5: Solve for x
    x = 24,554,693,362.56/187,286.46
  6. Step 6: Final answer
    x = 131,107.68

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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.