Home / 107,890.20-161,908.20-37,770.12

Finding the Fourth Proportional to 107,890.20, 161,908.20 and 37,770.12

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Solution

The fourth proportional to 107,890.20, 161,908.20 and 37,770.12 is: 56,680.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,890.20 : 161,908.20 = 37,770.12 : x
  2. Step 2: Convert to fraction form
    107,890.20/161,908.20 = 37,770.12/x
  3. Step 3: Cross multiply
    107,890.20x = 161,908.20 × 37,770.12
  4. Step 4: Simplify right side
    107,890.20x = 6,115,292,142.98
  5. Step 5: Solve for x
    x = 6,115,292,142.98/107,890.20
  6. Step 6: Final answer
    x = 56,680.70

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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.