Home / 187,640.07-258,838.28-111,084.50

Finding the Fourth Proportional to 187,640.07, 258,838.28 and 111,084.50

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Solution

The fourth proportional to 187,640.07, 258,838.28 and 111,084.50 is: 153,234.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,640.07 : 258,838.28 = 111,084.50 : x
  2. Step 2: Convert to fraction form
    187,640.07/258,838.28 = 111,084.50/x
  3. Step 3: Cross multiply
    187,640.07x = 258,838.28 × 111,084.50
  4. Step 4: Simplify right side
    187,640.07x = 28,752,919,065.05
  5. Step 5: Solve for x
    x = 28,752,919,065.05/187,640.07
  6. Step 6: Final answer
    x = 153,234.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.