Home / 223,723.70-308,738.61-123,121.70

Finding the Fourth Proportional to 223,723.70, 308,738.61 and 123,121.70

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Solution

The fourth proportional to 223,723.70, 308,738.61 and 123,121.70 is: 169,907.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,723.70 : 308,738.61 = 123,121.70 : x
  2. Step 2: Convert to fraction form
    223,723.70/308,738.61 = 123,121.70/x
  3. Step 3: Cross multiply
    223,723.70x = 308,738.61 × 123,121.70
  4. Step 4: Simplify right side
    223,723.70x = 38,012,422,518.84
  5. Step 5: Solve for x
    x = 38,012,422,518.84/223,723.70
  6. Step 6: Final answer
    x = 169,907.89

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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.