Home / 122,739.62-169,379.56-69,025.01

Finding the Fourth Proportional to 122,739.62, 169,379.56 and 69,025.01

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Solution

The fourth proportional to 122,739.62, 169,379.56 and 69,025.01 is: 95,253.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,739.62 : 169,379.56 = 69,025.01 : x
  2. Step 2: Convert to fraction form
    122,739.62/169,379.56 = 69,025.01/x
  3. Step 3: Cross multiply
    122,739.62x = 169,379.56 × 69,025.01
  4. Step 4: Simplify right side
    122,739.62x = 11,691,425,822.80
  5. Step 5: Solve for x
    x = 11,691,425,822.80/122,739.62
  6. Step 6: Final answer
    x = 95,253.89

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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.