Home / 131,836.44-181,932.84-71,405.58

Finding the Fourth Proportional to 131,836.44, 181,932.84 and 71,405.58

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Solution

The fourth proportional to 131,836.44, 181,932.84 and 71,405.58 is: 98,538.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,836.44 : 181,932.84 = 71,405.58 : x
  2. Step 2: Convert to fraction form
    131,836.44/181,932.84 = 71,405.58/x
  3. Step 3: Cross multiply
    131,836.44x = 181,932.84 × 71,405.58
  4. Step 4: Simplify right side
    131,836.44x = 12,991,019,961.25
  5. Step 5: Solve for x
    x = 12,991,019,961.25/131,836.44
  6. Step 6: Final answer
    x = 98,538.92

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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.