Home / 91,066.09-125,600.54-80,867.85

Finding the Fourth Proportional to 91,066.09, 125,600.54 and 80,867.85

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Solution

The fourth proportional to 91,066.09, 125,600.54 and 80,867.85 is: 111,534.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,066.09 : 125,600.54 = 80,867.85 : x
  2. Step 2: Convert to fraction form
    91,066.09/125,600.54 = 80,867.85/x
  3. Step 3: Cross multiply
    91,066.09x = 125,600.54 × 80,867.85
  4. Step 4: Simplify right side
    91,066.09x = 10,157,044,596.30
  5. Step 5: Solve for x
    x = 10,157,044,596.30/91,066.09
  6. Step 6: Final answer
    x = 111,534.88

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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.