Home / 187,828.31-259,219.49-102,961.78

Finding the Fourth Proportional to 187,828.31, 259,219.49 and 102,961.78

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Solution

The fourth proportional to 187,828.31, 259,219.49 and 102,961.78 is: 142,096.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,828.31 : 259,219.49 = 102,961.78 : x
  2. Step 2: Convert to fraction form
    187,828.31/259,219.49 = 102,961.78/x
  3. Step 3: Cross multiply
    187,828.31x = 259,219.49 × 102,961.78
  4. Step 4: Simplify right side
    187,828.31x = 26,689,698,938.23
  5. Step 5: Solve for x
    x = 26,689,698,938.23/187,828.31
  6. Step 6: Final answer
    x = 142,096.25

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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.