Home / 220,021.84-303,635.64-119,419.60

Finding the Fourth Proportional to 220,021.84, 303,635.64 and 119,419.60

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Solution

The fourth proportional to 220,021.84, 303,635.64 and 119,419.60 is: 164,802.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,021.84 : 303,635.64 = 119,419.60 : x
  2. Step 2: Convert to fraction form
    220,021.84/303,635.64 = 119,419.60/x
  3. Step 3: Cross multiply
    220,021.84x = 303,635.64 × 119,419.60
  4. Step 4: Simplify right side
    220,021.84x = 36,260,046,674.54
  5. Step 5: Solve for x
    x = 36,260,046,674.54/220,021.84
  6. Step 6: Final answer
    x = 164,802.03

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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.