Home / 261,747.36-392,326.56-111,912.48

Finding the Fourth Proportional to 261,747.36, 392,326.56 and 111,912.48

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Solution

The fourth proportional to 261,747.36, 392,326.56 and 111,912.48 is: 167,742.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,747.36 : 392,326.56 = 111,912.48 : x
  2. Step 2: Convert to fraction form
    261,747.36/392,326.56 = 111,912.48/x
  3. Step 3: Cross multiply
    261,747.36x = 392,326.56 × 111,912.48
  4. Step 4: Simplify right side
    261,747.36x = 43,906,238,299.47
  5. Step 5: Solve for x
    x = 43,906,238,299.47/261,747.36
  6. Step 6: Final answer
    x = 167,742.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.