Home / 122,949.72-169,673.51-68,505.57

Finding the Fourth Proportional to 122,949.72, 169,673.51 and 68,505.57

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Solution

The fourth proportional to 122,949.72, 169,673.51 and 68,505.57 is: 94,539.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,949.72 : 169,673.51 = 68,505.57 : x
  2. Step 2: Convert to fraction form
    122,949.72/169,673.51 = 68,505.57/x
  3. Step 3: Cross multiply
    122,949.72x = 169,673.51 × 68,505.57
  4. Step 4: Simplify right side
    122,949.72x = 11,623,580,972.25
  5. Step 5: Solve for x
    x = 11,623,580,972.25/122,949.72
  6. Step 6: Final answer
    x = 94,539.30

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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.