Home / 108,028.38-161,809.29-105,384.54

Finding the Fourth Proportional to 108,028.38, 161,809.29 and 105,384.54

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Solution

The fourth proportional to 108,028.38, 161,809.29 and 105,384.54 is: 157,849.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,028.38 : 161,809.29 = 105,384.54 : x
  2. Step 2: Convert to fraction form
    108,028.38/161,809.29 = 105,384.54/x
  3. Step 3: Cross multiply
    108,028.38x = 161,809.29 × 105,384.54
  4. Step 4: Simplify right side
    108,028.38x = 17,052,197,594.38
  5. Step 5: Solve for x
    x = 17,052,197,594.38/108,028.38
  6. Step 6: Final answer
    x = 157,849.24

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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.