Home / 159,968.12-220,798.78-91,992.56

Finding the Fourth Proportional to 159,968.12, 220,798.78 and 91,992.56

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Solution

The fourth proportional to 159,968.12, 220,798.78 and 91,992.56 is: 126,974.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,968.12 : 220,798.78 = 91,992.56 : x
  2. Step 2: Convert to fraction form
    159,968.12/220,798.78 = 91,992.56/x
  3. Step 3: Cross multiply
    159,968.12x = 220,798.78 × 91,992.56
  4. Step 4: Simplify right side
    159,968.12x = 20,311,845,017.08
  5. Step 5: Solve for x
    x = 20,311,845,017.08/159,968.12
  6. Step 6: Final answer
    x = 126,974.33

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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.