Home / 161,228.82-221,908.50-141,982.59

Finding the Fourth Proportional to 161,228.82, 221,908.50 and 141,982.59

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Solution

The fourth proportional to 161,228.82, 221,908.50 and 141,982.59 is: 195,418.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,228.82 : 221,908.50 = 141,982.59 : x
  2. Step 2: Convert to fraction form
    161,228.82/221,908.50 = 141,982.59/x
  3. Step 3: Cross multiply
    161,228.82x = 221,908.50 × 141,982.59
  4. Step 4: Simplify right side
    161,228.82x = 31,507,143,573.02
  5. Step 5: Solve for x
    x = 31,507,143,573.02/161,228.82
  6. Step 6: Final answer
    x = 195,418.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.