Home / 126,231.99-174,169-77,161.04

Finding the Fourth Proportional to 126,231.99, 174,169 and 77,161.04

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Solution

The fourth proportional to 126,231.99, 174,169 and 77,161.04 is: 106,463.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,231.99 : 174,169 = 77,161.04 : x
  2. Step 2: Convert to fraction form
    126,231.99/174,169 = 77,161.04/x
  3. Step 3: Cross multiply
    126,231.99x = 174,169 × 77,161.04
  4. Step 4: Simplify right side
    126,231.99x = 13,439,061,175.76
  5. Step 5: Solve for x
    x = 13,439,061,175.76/126,231.99
  6. Step 6: Final answer
    x = 106,463.20

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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.