Home / 107,617.82-161,415.79-28,740.02

Finding the Fourth Proportional to 107,617.82, 161,415.79 and 28,740.02

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Solution

The fourth proportional to 107,617.82, 161,415.79 and 28,740.02 is: 43,107.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,617.82 : 161,415.79 = 28,740.02 : x
  2. Step 2: Convert to fraction form
    107,617.82/161,415.79 = 28,740.02/x
  3. Step 3: Cross multiply
    107,617.82x = 161,415.79 × 28,740.02
  4. Step 4: Simplify right side
    107,617.82x = 4,639,092,153.99
  5. Step 5: Solve for x
    x = 4,639,092,153.99/107,617.82
  6. Step 6: Final answer
    x = 43,107.10

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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.