Home / 107,691.38-161,533.07-43,647.31

Finding the Fourth Proportional to 107,691.38, 161,533.07 and 43,647.31

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Solution

The fourth proportional to 107,691.38, 161,533.07 and 43,647.31 is: 65,469.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,691.38 : 161,533.07 = 43,647.31 : x
  2. Step 2: Convert to fraction form
    107,691.38/161,533.07 = 43,647.31/x
  3. Step 3: Cross multiply
    107,691.38x = 161,533.07 × 43,647.31
  4. Step 4: Simplify right side
    107,691.38x = 7,050,484,128.90
  5. Step 5: Solve for x
    x = 7,050,484,128.90/107,691.38
  6. Step 6: Final answer
    x = 65,469.35

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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.