Home / 107,720.97-161,562-37,620.33

Finding the Fourth Proportional to 107,720.97, 161,562 and 37,620.33

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Solution

The fourth proportional to 107,720.97, 161,562 and 37,620.33 is: 56,423.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,720.97 : 161,562 = 37,620.33 : x
  2. Step 2: Convert to fraction form
    107,720.97/161,562 = 37,620.33/x
  3. Step 3: Cross multiply
    107,720.97x = 161,562 × 37,620.33
  4. Step 4: Simplify right side
    107,720.97x = 6,078,015,755.46
  5. Step 5: Solve for x
    x = 6,078,015,755.46/107,720.97
  6. Step 6: Final answer
    x = 56,423.70

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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.