Home / 187,540.32-258,806.34-102,665.28

Finding the Fourth Proportional to 187,540.32, 258,806.34 and 102,665.28

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Solution

The fourth proportional to 187,540.32, 258,806.34 and 102,665.28 is: 141,678.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,540.32 : 258,806.34 = 102,665.28 : x
  2. Step 2: Convert to fraction form
    187,540.32/258,806.34 = 102,665.28/x
  3. Step 3: Cross multiply
    187,540.32x = 258,806.34 × 102,665.28
  4. Step 4: Simplify right side
    187,540.32x = 26,570,425,361.88
  5. Step 5: Solve for x
    x = 26,570,425,361.88/187,540.32
  6. Step 6: Final answer
    x = 141,678.47

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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.