Home / 131,679.73-181,716.69-71,249.05

Finding the Fourth Proportional to 131,679.73, 181,716.69 and 71,249.05

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Solution

The fourth proportional to 131,679.73, 181,716.69 and 71,249.05 is: 98,322.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,679.73 : 181,716.69 = 71,249.05 : x
  2. Step 2: Convert to fraction form
    131,679.73/181,716.69 = 71,249.05/x
  3. Step 3: Cross multiply
    131,679.73x = 181,716.69 × 71,249.05
  4. Step 4: Simplify right side
    131,679.73x = 12,947,141,531.64
  5. Step 5: Solve for x
    x = 12,947,141,531.64/131,679.73
  6. Step 6: Final answer
    x = 98,322.97

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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.