Home / 122,553.23-169,108.59-68,105.12

Finding the Fourth Proportional to 122,553.23, 169,108.59 and 68,105.12

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Solution

The fourth proportional to 122,553.23, 169,108.59 and 68,105.12 is: 93,976.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,553.23 : 169,108.59 = 68,105.12 : x
  2. Step 2: Convert to fraction form
    122,553.23/169,108.59 = 68,105.12/x
  3. Step 3: Cross multiply
    122,553.23x = 169,108.59 × 68,105.12
  4. Step 4: Simplify right side
    122,553.23x = 11,517,161,237.75
  5. Step 5: Solve for x
    x = 11,517,161,237.75/122,553.23
  6. Step 6: Final answer
    x = 93,976.81

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1.5x scale

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.