Home / 187,680.70-258,996.44-107,106.15

Finding the Fourth Proportional to 187,680.70, 258,996.44 and 107,106.15

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Solution

The fourth proportional to 187,680.70, 258,996.44 and 107,106.15 is: 147,804.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,680.70 : 258,996.44 = 107,106.15 : x
  2. Step 2: Convert to fraction form
    187,680.70/258,996.44 = 107,106.15/x
  3. Step 3: Cross multiply
    187,680.70x = 258,996.44 × 107,106.15
  4. Step 4: Simplify right side
    187,680.70x = 27,740,111,819.87
  5. Step 5: Solve for x
    x = 27,740,111,819.87/187,680.70
  6. Step 6: Final answer
    x = 147,804.82

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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.