Home / 107,617.22-161,318.72-51,391.60

Finding the Fourth Proportional to 107,617.22, 161,318.72 and 51,391.60

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Solution

The fourth proportional to 107,617.22, 161,318.72 and 51,391.60 is: 77,036.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,617.22 : 161,318.72 = 51,391.60 : x
  2. Step 2: Convert to fraction form
    107,617.22/161,318.72 = 51,391.60/x
  3. Step 3: Cross multiply
    107,617.22x = 161,318.72 × 51,391.60
  4. Step 4: Simplify right side
    107,617.22x = 8,290,427,130.75
  5. Step 5: Solve for x
    x = 8,290,427,130.75/107,617.22
  6. Step 6: Final answer
    x = 77,036.25

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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.