Home / 218,620.39-301,688.27-123,135.97

Finding the Fourth Proportional to 218,620.39, 301,688.27 and 123,135.97

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Solution

The fourth proportional to 218,620.39, 301,688.27 and 123,135.97 is: 169,923.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,620.39 : 301,688.27 = 123,135.97 : x
  2. Step 2: Convert to fraction form
    218,620.39/301,688.27 = 123,135.97/x
  3. Step 3: Cross multiply
    218,620.39x = 301,688.27 × 123,135.97
  4. Step 4: Simplify right side
    218,620.39x = 37,148,677,148.39
  5. Step 5: Solve for x
    x = 37,148,677,148.39/218,620.39
  6. Step 6: Final answer
    x = 169,923.20

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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.