Home / 109,872.36-151,629.66-69,571.44

Finding the Fourth Proportional to 109,872.36, 151,629.66 and 69,571.44

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Solution

The fourth proportional to 109,872.36, 151,629.66 and 69,571.44 is: 96,012.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,872.36 : 151,629.66 = 69,571.44 : x
  2. Step 2: Convert to fraction form
    109,872.36/151,629.66 = 69,571.44/x
  3. Step 3: Cross multiply
    109,872.36x = 151,629.66 × 69,571.44
  4. Step 4: Simplify right side
    109,872.36x = 10,549,093,792.91
  5. Step 5: Solve for x
    x = 10,549,093,792.91/109,872.36
  6. Step 6: Final answer
    x = 96,012.26

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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.