Home / 187,881.75-259,276.82-102,999.42

Finding the Fourth Proportional to 187,881.75, 259,276.82 and 102,999.42

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Solution

The fourth proportional to 187,881.75, 259,276.82 and 102,999.42 is: 142,139.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,881.75 : 259,276.82 = 102,999.42 : x
  2. Step 2: Convert to fraction form
    187,881.75/259,276.82 = 102,999.42/x
  3. Step 3: Cross multiply
    187,881.75x = 259,276.82 × 102,999.42
  4. Step 4: Simplify right side
    187,881.75x = 26,705,361,564.45
  5. Step 5: Solve for x
    x = 26,705,361,564.45/187,881.75
  6. Step 6: Final answer
    x = 142,139.20

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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.