Home / 107,972.20-161,909.70-41,390.20

Finding the Fourth Proportional to 107,972.20, 161,909.70 and 41,390.20

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Solution

The fourth proportional to 107,972.20, 161,909.70 and 41,390.20 is: 62,066.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,972.20 : 161,909.70 = 41,390.20 : x
  2. Step 2: Convert to fraction form
    107,972.20/161,909.70 = 41,390.20/x
  3. Step 3: Cross multiply
    107,972.20x = 161,909.70 × 41,390.20
  4. Step 4: Simplify right side
    107,972.20x = 6,701,474,864.94
  5. Step 5: Solve for x
    x = 6,701,474,864.94/107,972.20
  6. Step 6: Final answer
    x = 62,066.67

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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.