Home / 142,793.19-196,991.19-91,796.45

Finding the Fourth Proportional to 142,793.19, 196,991.19 and 91,796.45

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Solution

The fourth proportional to 142,793.19, 196,991.19 and 91,796.45 is: 126,638.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,793.19 : 196,991.19 = 91,796.45 : x
  2. Step 2: Convert to fraction form
    142,793.19/196,991.19 = 91,796.45/x
  3. Step 3: Cross multiply
    142,793.19x = 196,991.19 × 91,796.45
  4. Step 4: Simplify right side
    142,793.19x = 18,083,091,923.28
  5. Step 5: Solve for x
    x = 18,083,091,923.28/142,793.19
  6. Step 6: Final answer
    x = 126,638.34

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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.