Home / 133,217.34-199,820.52-74,015.25

Finding the Fourth Proportional to 133,217.34, 199,820.52 and 74,015.25

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Solution

The fourth proportional to 133,217.34, 199,820.52 and 74,015.25 is: 111,019.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,217.34 : 199,820.52 = 74,015.25 : x
  2. Step 2: Convert to fraction form
    133,217.34/199,820.52 = 74,015.25/x
  3. Step 3: Cross multiply
    133,217.34x = 199,820.52 × 74,015.25
  4. Step 4: Simplify right side
    133,217.34x = 14,789,765,742.93
  5. Step 5: Solve for x
    x = 14,789,765,742.93/133,217.34
  6. Step 6: Final answer
    x = 111,019.82

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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.