Home / 84,136.52-126,107.89-34,161.75

Finding the Fourth Proportional to 84,136.52, 126,107.89 and 34,161.75

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Solution

The fourth proportional to 84,136.52, 126,107.89 and 34,161.75 is: 51,203.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,136.52 : 126,107.89 = 34,161.75 : x
  2. Step 2: Convert to fraction form
    84,136.52/126,107.89 = 34,161.75/x
  3. Step 3: Cross multiply
    84,136.52x = 126,107.89 × 34,161.75
  4. Step 4: Simplify right side
    84,136.52x = 4,308,066,125.80
  5. Step 5: Solve for x
    x = 4,308,066,125.80/84,136.52
  6. Step 6: Final answer
    x = 51,203.28

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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.