Home / 160,031.57-240,198-81,202.37

Finding the Fourth Proportional to 160,031.57, 240,198 and 81,202.37

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Solution

The fourth proportional to 160,031.57, 240,198 and 81,202.37 is: 121,879.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,031.57 : 240,198 = 81,202.37 : x
  2. Step 2: Convert to fraction form
    160,031.57/240,198 = 81,202.37/x
  3. Step 3: Cross multiply
    160,031.57x = 240,198 × 81,202.37
  4. Step 4: Simplify right side
    160,031.57x = 19,504,646,869.26
  5. Step 5: Solve for x
    x = 19,504,646,869.26/160,031.57
  6. Step 6: Final answer
    x = 121,879.99

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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.