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Finding the Fourth Proportional to 168,218.79, 232,138.98 and 91,738.47

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Solution

The fourth proportional to 168,218.79, 232,138.98 and 91,738.47 is: 126,597.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,218.79 : 232,138.98 = 91,738.47 : x
  2. Step 2: Convert to fraction form
    168,218.79/232,138.98 = 91,738.47/x
  3. Step 3: Cross multiply
    168,218.79x = 232,138.98 × 91,738.47
  4. Step 4: Simplify right side
    168,218.79x = 21,296,074,852.56
  5. Step 5: Solve for x
    x = 21,296,074,852.56/168,218.79
  6. Step 6: Final answer
    x = 126,597.48

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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.