Home / 99,902.44-137,550.18-81,101.80

Finding the Fourth Proportional to 99,902.44, 137,550.18 and 81,101.80

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Solution

The fourth proportional to 99,902.44, 137,550.18 and 81,101.80 is: 111,664.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,902.44 : 137,550.18 = 81,101.80 : x
  2. Step 2: Convert to fraction form
    99,902.44/137,550.18 = 81,101.80/x
  3. Step 3: Cross multiply
    99,902.44x = 137,550.18 × 81,101.80
  4. Step 4: Simplify right side
    99,902.44x = 11,155,567,188.32
  5. Step 5: Solve for x
    x = 11,155,567,188.32/99,902.44
  6. Step 6: Final answer
    x = 111,664.61

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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.