Home / 142,721.00-196,768.28-122,791.97

Finding the Fourth Proportional to 142,721.00, 196,768.28 and 122,791.97

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Solution

The fourth proportional to 142,721.00, 196,768.28 and 122,791.97 is: 169,292.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,721.00 : 196,768.28 = 122,791.97 : x
  2. Step 2: Convert to fraction form
    142,721.00/196,768.28 = 122,791.97/x
  3. Step 3: Cross multiply
    142,721.00x = 196,768.28 × 122,791.97
  4. Step 4: Simplify right side
    142,721.00x = 24,161,564,057.85
  5. Step 5: Solve for x
    x = 24,161,564,057.85/142,721.00
  6. Step 6: Final answer
    x = 169,292.28

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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.