Home / 161,481.75-242,151.95-81,470.49

Finding the Fourth Proportional to 161,481.75, 242,151.95 and 81,470.49

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Solution

The fourth proportional to 161,481.75, 242,151.95 and 81,470.49 is: 122,170.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,481.75 : 242,151.95 = 81,470.49 : x
  2. Step 2: Convert to fraction form
    161,481.75/242,151.95 = 81,470.49/x
  3. Step 3: Cross multiply
    161,481.75x = 242,151.95 × 81,470.49
  4. Step 4: Simplify right side
    161,481.75x = 19,728,237,613.60
  5. Step 5: Solve for x
    x = 19,728,237,613.60/161,481.75
  6. Step 6: Final answer
    x = 122,170.08

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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.