Home / 107,426.80-161,197.80-45,103.60

Finding the Fourth Proportional to 107,426.80, 161,197.80 and 45,103.60

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Solution

The fourth proportional to 107,426.80, 161,197.80 and 45,103.60 is: 67,679.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,426.80 : 161,197.80 = 45,103.60 : x
  2. Step 2: Convert to fraction form
    107,426.80/161,197.80 = 45,103.60/x
  3. Step 3: Cross multiply
    107,426.80x = 161,197.80 × 45,103.60
  4. Step 4: Simplify right side
    107,426.80x = 7,270,601,092.08
  5. Step 5: Solve for x
    x = 7,270,601,092.08/107,426.80
  6. Step 6: Final answer
    x = 67,679.58

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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.