Home / 159,945.73-240,103.13-81,226.03

Finding the Fourth Proportional to 159,945.73, 240,103.13 and 81,226.03

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Solution

The fourth proportional to 159,945.73, 240,103.13 and 81,226.03 is: 121,932.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,945.73 : 240,103.13 = 81,226.03 : x
  2. Step 2: Convert to fraction form
    159,945.73/240,103.13 = 81,226.03/x
  3. Step 3: Cross multiply
    159,945.73x = 240,103.13 × 81,226.03
  4. Step 4: Simplify right side
    159,945.73x = 19,502,624,808.82
  5. Step 5: Solve for x
    x = 19,502,624,808.82/159,945.73
  6. Step 6: Final answer
    x = 121,932.76

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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.