Home / 122,917.50-169,623.36-68,469.30

Finding the Fourth Proportional to 122,917.50, 169,623.36 and 68,469.30

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Solution

The fourth proportional to 122,917.50, 169,623.36 and 68,469.30 is: 94,486.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,917.50 : 169,623.36 = 68,469.30 : x
  2. Step 2: Convert to fraction form
    122,917.50/169,623.36 = 68,469.30/x
  3. Step 3: Cross multiply
    122,917.50x = 169,623.36 × 68,469.30
  4. Step 4: Simplify right side
    122,917.50x = 11,613,992,722.85
  5. Step 5: Solve for x
    x = 11,613,992,722.85/122,917.50
  6. Step 6: Final answer
    x = 94,486.08

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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.