Home / 138,481.44-191,181.24-90,804.84

Finding the Fourth Proportional to 138,481.44, 191,181.24 and 90,804.84

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Solution

The fourth proportional to 138,481.44, 191,181.24 and 90,804.84 is: 125,361.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,481.44 : 191,181.24 = 90,804.84 : x
  2. Step 2: Convert to fraction form
    138,481.44/191,181.24 = 90,804.84/x
  3. Step 3: Cross multiply
    138,481.44x = 191,181.24 × 90,804.84
  4. Step 4: Simplify right side
    138,481.44x = 17,360,181,909.20
  5. Step 5: Solve for x
    x = 17,360,181,909.20/138,481.44
  6. Step 6: Final answer
    x = 125,361.07

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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.