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Finding the Fourth Proportional to 126,469.56, 174,522.39 and 69,879.72

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Solution

The fourth proportional to 126,469.56, 174,522.39 and 69,879.72 is: 96,430.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,469.56 : 174,522.39 = 69,879.72 : x
  2. Step 2: Convert to fraction form
    126,469.56/174,522.39 = 69,879.72/x
  3. Step 3: Cross multiply
    126,469.56x = 174,522.39 × 69,879.72
  4. Step 4: Simplify right side
    126,469.56x = 12,195,575,746.93
  5. Step 5: Solve for x
    x = 12,195,575,746.93/126,469.56
  6. Step 6: Final answer
    x = 96,430.92

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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.