Home / 187,872.86-259,262.56-102,989.46

Finding the Fourth Proportional to 187,872.86, 259,262.56 and 102,989.46

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Solution

The fourth proportional to 187,872.86, 259,262.56 and 102,989.46 is: 142,124.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,872.86 : 259,262.56 = 102,989.46 : x
  2. Step 2: Convert to fraction form
    187,872.86/259,262.56 = 102,989.46/x
  3. Step 3: Cross multiply
    187,872.86x = 259,262.56 × 102,989.46
  4. Step 4: Simplify right side
    187,872.86x = 26,701,311,052.62
  5. Step 5: Solve for x
    x = 26,701,311,052.62/187,872.86
  6. Step 6: Final answer
    x = 142,124.37

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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.