Home / 107,993.40-161,979.16-29,115.60

Finding the Fourth Proportional to 107,993.40, 161,979.16 and 29,115.60

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Solution

The fourth proportional to 107,993.40, 161,979.16 and 29,115.60 is: 43,670.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,993.40 : 161,979.16 = 29,115.60 : x
  2. Step 2: Convert to fraction form
    107,993.40/161,979.16 = 29,115.60/x
  3. Step 3: Cross multiply
    107,993.40x = 161,979.16 × 29,115.60
  4. Step 4: Simplify right side
    107,993.40x = 4,716,120,430.90
  5. Step 5: Solve for x
    x = 4,716,120,430.90/107,993.40
  6. Step 6: Final answer
    x = 43,670.45

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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.