Home / 220,012.54-330,085.23-91,991.04

Finding the Fourth Proportional to 220,012.54, 330,085.23 and 91,991.04

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Solution

The fourth proportional to 220,012.54, 330,085.23 and 91,991.04 is: 138,014.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,012.54 : 330,085.23 = 91,991.04 : x
  2. Step 2: Convert to fraction form
    220,012.54/330,085.23 = 91,991.04/x
  3. Step 3: Cross multiply
    220,012.54x = 330,085.23 × 91,991.04
  4. Step 4: Simplify right side
    220,012.54x = 30,364,883,596.34
  5. Step 5: Solve for x
    x = 30,364,883,596.34/220,012.54
  6. Step 6: Final answer
    x = 138,014.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.