Home / 138,160.24-207,189.60-49,389.68

Finding the Fourth Proportional to 138,160.24, 207,189.60 and 49,389.68

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Solution

The fourth proportional to 138,160.24, 207,189.60 and 49,389.68 is: 74,066.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,160.24 : 207,189.60 = 49,389.68 : x
  2. Step 2: Convert to fraction form
    138,160.24/207,189.60 = 49,389.68/x
  3. Step 3: Cross multiply
    138,160.24x = 207,189.60 × 49,389.68
  4. Step 4: Simplify right side
    138,160.24x = 10,233,028,043.33
  5. Step 5: Solve for x
    x = 10,233,028,043.33/138,160.24
  6. Step 6: Final answer
    x = 74,066.37

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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.