Home / 187,877.80-259,281.30-102,998.44

Finding the Fourth Proportional to 187,877.80, 259,281.30 and 102,998.44

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Solution

The fourth proportional to 187,877.80, 259,281.30 and 102,998.44 is: 142,143.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,877.80 : 259,281.30 = 102,998.44 : x
  2. Step 2: Convert to fraction form
    187,877.80/259,281.30 = 102,998.44/x
  3. Step 3: Cross multiply
    187,877.80x = 259,281.30 × 102,998.44
  4. Step 4: Simplify right side
    187,877.80x = 26,705,569,421.17
  5. Step 5: Solve for x
    x = 26,705,569,421.17/187,877.80
  6. Step 6: Final answer
    x = 142,143.29

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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.