Home / 122,514.68-169,373.48-121,392.56

Finding the Fourth Proportional to 122,514.68, 169,373.48 and 121,392.56

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Solution

The fourth proportional to 122,514.68, 169,373.48 and 121,392.56 is: 167,822.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,514.68 : 169,373.48 = 121,392.56 : x
  2. Step 2: Convert to fraction form
    122,514.68/169,373.48 = 121,392.56/x
  3. Step 3: Cross multiply
    122,514.68x = 169,373.48 × 121,392.56
  4. Step 4: Simplify right side
    122,514.68x = 20,560,678,879.48
  5. Step 5: Solve for x
    x = 20,560,678,879.48/122,514.68
  6. Step 6: Final answer
    x = 167,822.17

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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.