Home / 161,721.07-242,628.38-66,933.73

Finding the Fourth Proportional to 161,721.07, 242,628.38 and 66,933.73

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Solution

The fourth proportional to 161,721.07, 242,628.38 and 66,933.73 is: 100,419.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,721.07 : 242,628.38 = 66,933.73 : x
  2. Step 2: Convert to fraction form
    161,721.07/242,628.38 = 66,933.73/x
  3. Step 3: Cross multiply
    161,721.07x = 242,628.38 × 66,933.73
  4. Step 4: Simplify right side
    161,721.07x = 16,240,022,477.26
  5. Step 5: Solve for x
    x = 16,240,022,477.26/161,721.07
  6. Step 6: Final answer
    x = 100,419.95

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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.