Home / 223,716.71-308,733.15-123,112.55

Finding the Fourth Proportional to 223,716.71, 308,733.15 and 123,112.55

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Solution

The fourth proportional to 223,716.71, 308,733.15 and 123,112.55 is: 169,897.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,716.71 : 308,733.15 = 123,112.55 : x
  2. Step 2: Convert to fraction form
    223,716.71/308,733.15 = 123,112.55/x
  3. Step 3: Cross multiply
    223,716.71x = 308,733.15 × 123,112.55
  4. Step 4: Simplify right side
    223,716.71x = 38,008,923,822.37
  5. Step 5: Solve for x
    x = 38,008,923,822.37/223,716.71
  6. Step 6: Final answer
    x = 169,897.57

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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.