Home / 122,571.96-169,151.59-68,129.22

Finding the Fourth Proportional to 122,571.96, 169,151.59 and 68,129.22

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Solution

The fourth proportional to 122,571.96, 169,151.59 and 68,129.22 is: 94,019.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,571.96 : 169,151.59 = 68,129.22 : x
  2. Step 2: Convert to fraction form
    122,571.96/169,151.59 = 68,129.22/x
  3. Step 3: Cross multiply
    122,571.96x = 169,151.59 × 68,129.22
  4. Step 4: Simplify right side
    122,571.96x = 11,524,165,888.46
  5. Step 5: Solve for x
    x = 11,524,165,888.46/122,571.96
  6. Step 6: Final answer
    x = 94,019.59

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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.