Home / 107,605.20-161,305.40-83,899.60

Finding the Fourth Proportional to 107,605.20, 161,305.40 and 83,899.60

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Solution

The fourth proportional to 107,605.20, 161,305.40 and 83,899.60 is: 125,769.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,605.20 : 161,305.40 = 83,899.60 : x
  2. Step 2: Convert to fraction form
    107,605.20/161,305.40 = 83,899.60/x
  3. Step 3: Cross multiply
    107,605.20x = 161,305.40 × 83,899.60
  4. Step 4: Simplify right side
    107,605.20x = 13,533,458,537.84
  5. Step 5: Solve for x
    x = 13,533,458,537.84/107,605.20
  6. Step 6: Final answer
    x = 125,769.56

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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.