Home / 123,961.04-171,063.19-72,287.56

Finding the Fourth Proportional to 123,961.04, 171,063.19 and 72,287.56

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Solution

The fourth proportional to 123,961.04, 171,063.19 and 72,287.56 is: 99,755.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,961.04 : 171,063.19 = 72,287.56 : x
  2. Step 2: Convert to fraction form
    123,961.04/171,063.19 = 72,287.56/x
  3. Step 3: Cross multiply
    123,961.04x = 171,063.19 × 72,287.56
  4. Step 4: Simplify right side
    123,961.04x = 12,365,740,610.92
  5. Step 5: Solve for x
    x = 12,365,740,610.92/123,961.04
  6. Step 6: Final answer
    x = 99,755.06

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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.