Home / 107,622.40-161,433.60-84,268.80

Finding the Fourth Proportional to 107,622.40, 161,433.60 and 84,268.80

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Solution

The fourth proportional to 107,622.40, 161,433.60 and 84,268.80 is: 126,403.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,622.40 : 161,433.60 = 84,268.80 : x
  2. Step 2: Convert to fraction form
    107,622.40/161,433.60 = 84,268.80/x
  3. Step 3: Cross multiply
    107,622.40x = 161,433.60 × 84,268.80
  4. Step 4: Simplify right side
    107,622.40x = 13,603,815,751.68
  5. Step 5: Solve for x
    x = 13,603,815,751.68/107,622.40
  6. Step 6: Final answer
    x = 126,403.20

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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.