Home / 110,112.86-151,887.20-91,668.90

Finding the Fourth Proportional to 110,112.86, 151,887.20 and 91,668.90

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Solution

The fourth proportional to 110,112.86, 151,887.20 and 91,668.90 is: 126,446.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,112.86 : 151,887.20 = 91,668.90 : x
  2. Step 2: Convert to fraction form
    110,112.86/151,887.20 = 91,668.90/x
  3. Step 3: Cross multiply
    110,112.86x = 151,887.20 × 91,668.90
  4. Step 4: Simplify right side
    110,112.86x = 13,923,332,548.08
  5. Step 5: Solve for x
    x = 13,923,332,548.08/110,112.86
  6. Step 6: Final answer
    x = 126,446.02

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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.