Home / 135,796.53-187,400.45-82,117.42

Finding the Fourth Proportional to 135,796.53, 187,400.45 and 82,117.42

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Solution

The fourth proportional to 135,796.53, 187,400.45 and 82,117.42 is: 113,322.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,796.53 : 187,400.45 = 82,117.42 : x
  2. Step 2: Convert to fraction form
    135,796.53/187,400.45 = 82,117.42/x
  3. Step 3: Cross multiply
    135,796.53x = 187,400.45 × 82,117.42
  4. Step 4: Simplify right side
    135,796.53x = 15,388,841,460.84
  5. Step 5: Solve for x
    x = 15,388,841,460.84/135,796.53
  6. Step 6: Final answer
    x = 113,322.79

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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.