Home / 220,121.55-303,774.30-139,530.60

Finding the Fourth Proportional to 220,121.55, 303,774.30 and 139,530.60

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Solution

The fourth proportional to 220,121.55, 303,774.30 and 139,530.60 is: 192,556.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,121.55 : 303,774.30 = 139,530.60 : x
  2. Step 2: Convert to fraction form
    220,121.55/303,774.30 = 139,530.60/x
  3. Step 3: Cross multiply
    220,121.55x = 303,774.30 × 139,530.60
  4. Step 4: Simplify right side
    220,121.55x = 42,385,810,343.58
  5. Step 5: Solve for x
    x = 42,385,810,343.58/220,121.55
  6. Step 6: Final answer
    x = 192,556.39

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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.