Home / 220,121.96-330,166.76-70,322.02

Finding the Fourth Proportional to 220,121.96, 330,166.76 and 70,322.02

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Solution

The fourth proportional to 220,121.96, 330,166.76 and 70,322.02 is: 105,477.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,121.96 : 330,166.76 = 70,322.02 : x
  2. Step 2: Convert to fraction form
    220,121.96/330,166.76 = 70,322.02/x
  3. Step 3: Cross multiply
    220,121.96x = 330,166.76 × 70,322.02
  4. Step 4: Simplify right side
    220,121.96x = 23,217,993,500.06
  5. Step 5: Solve for x
    x = 23,217,993,500.06/220,121.96
  6. Step 6: Final answer
    x = 105,477.86

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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.