Home / 115,090.28-172,456.36-43,974.14

Finding the Fourth Proportional to 115,090.28, 172,456.36 and 43,974.14

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Solution

The fourth proportional to 115,090.28, 172,456.36 and 43,974.14 is: 65,892.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,090.28 : 172,456.36 = 43,974.14 : x
  2. Step 2: Convert to fraction form
    115,090.28/172,456.36 = 43,974.14/x
  3. Step 3: Cross multiply
    115,090.28x = 172,456.36 × 43,974.14
  4. Step 4: Simplify right side
    115,090.28x = 7,583,620,118.53
  5. Step 5: Solve for x
    x = 7,583,620,118.53/115,090.28
  6. Step 6: Final answer
    x = 65,892.79

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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.