Home / 109,625.82-151,157.52-80,986.92

Finding the Fourth Proportional to 109,625.82, 151,157.52 and 80,986.92

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Solution

The fourth proportional to 109,625.82, 151,157.52 and 80,986.92 is: 111,668.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,625.82 : 151,157.52 = 80,986.92 : x
  2. Step 2: Convert to fraction form
    109,625.82/151,157.52 = 80,986.92/x
  3. Step 3: Cross multiply
    109,625.82x = 151,157.52 × 80,986.92
  4. Step 4: Simplify right side
    109,625.82x = 12,241,781,979.64
  5. Step 5: Solve for x
    x = 12,241,781,979.64/109,625.82
  6. Step 6: Final answer
    x = 111,668.78

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1.5x scale

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.