Home / 187,669.12-259,009.12-115,115.36

Finding the Fourth Proportional to 187,669.12, 259,009.12 and 115,115.36

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Solution

The fourth proportional to 187,669.12, 259,009.12 and 115,115.36 is: 158,874.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,669.12 : 259,009.12 = 115,115.36 : x
  2. Step 2: Convert to fraction form
    187,669.12/259,009.12 = 115,115.36/x
  3. Step 3: Cross multiply
    187,669.12x = 259,009.12 × 115,115.36
  4. Step 4: Simplify right side
    187,669.12x = 29,815,928,092.08
  5. Step 5: Solve for x
    x = 29,815,928,092.08/187,669.12
  6. Step 6: Final answer
    x = 158,874.98

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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.