Home / 126,308.30-188,537.65-111,361.91

Finding the Fourth Proportional to 126,308.30, 188,537.65 and 111,361.91

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Solution

The fourth proportional to 126,308.30, 188,537.65 and 111,361.91 is: 166,227.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,308.30 : 188,537.65 = 111,361.91 : x
  2. Step 2: Convert to fraction form
    126,308.30/188,537.65 = 111,361.91/x
  3. Step 3: Cross multiply
    126,308.30x = 188,537.65 × 111,361.91
  4. Step 4: Simplify right side
    126,308.30x = 20,995,912,810.91
  5. Step 5: Solve for x
    x = 20,995,912,810.91/126,308.30
  6. Step 6: Final answer
    x = 166,227.50

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.