Home / 122,769.72-169,306.74-113,606.28

Finding the Fourth Proportional to 122,769.72, 169,306.74 and 113,606.28

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Solution

The fourth proportional to 122,769.72, 169,306.74 and 113,606.28 is: 156,669.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,769.72 : 169,306.74 = 113,606.28 : x
  2. Step 2: Convert to fraction form
    122,769.72/169,306.74 = 113,606.28/x
  3. Step 3: Cross multiply
    122,769.72x = 169,306.74 × 113,606.28
  4. Step 4: Simplify right side
    122,769.72x = 19,234,308,910.33
  5. Step 5: Solve for x
    x = 19,234,308,910.33/122,769.72
  6. Step 6: Final answer
    x = 156,669.81

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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.