Home / 187,285.46-280,969.82-87,391.17

Finding the Fourth Proportional to 187,285.46, 280,969.82 and 87,391.17

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Solution

The fourth proportional to 187,285.46, 280,969.82 and 87,391.17 is: 131,106.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,285.46 : 280,969.82 = 87,391.17 : x
  2. Step 2: Convert to fraction form
    187,285.46/280,969.82 = 87,391.17/x
  3. Step 3: Cross multiply
    187,285.46x = 280,969.82 × 87,391.17
  4. Step 4: Simplify right side
    187,285.46x = 24,554,279,462.68
  5. Step 5: Solve for x
    x = 24,554,279,462.68/187,285.46
  6. Step 6: Final answer
    x = 131,106.17

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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.