Home / 187,874.28-259,260.48-102,989.52

Finding the Fourth Proportional to 187,874.28, 259,260.48 and 102,989.52

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Solution

The fourth proportional to 187,874.28, 259,260.48 and 102,989.52 is: 142,122.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,874.28 : 259,260.48 = 102,989.52 : x
  2. Step 2: Convert to fraction form
    187,874.28/259,260.48 = 102,989.52/x
  3. Step 3: Cross multiply
    187,874.28x = 259,260.48 × 102,989.52
  4. Step 4: Simplify right side
    187,874.28x = 26,701,112,390.17
  5. Step 5: Solve for x
    x = 26,701,112,390.17/187,874.28
  6. Step 6: Final answer
    x = 142,122.23

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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.