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Finding the Fourth Proportional to 187,800, 281,640.52 and 61,411.04

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Solution

The fourth proportional to 187,800, 281,640.52 and 61,411.04 is: 92,097.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,800 : 281,640.52 = 61,411.04 : x
  2. Step 2: Convert to fraction form
    187,800/281,640.52 = 61,411.04/x
  3. Step 3: Cross multiply
    187,800x = 281,640.52 × 61,411.04
  4. Step 4: Simplify right side
    187,800x = 17,295,837,239.34
  5. Step 5: Solve for x
    x = 17,295,837,239.34/187,800
  6. Step 6: Final answer
    x = 92,097.11

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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.