Home / 223,721.86-308,736.78-123,119.86

Finding the Fourth Proportional to 223,721.86, 308,736.78 and 123,119.86

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Solution

The fourth proportional to 223,721.86, 308,736.78 and 123,119.86 is: 169,905.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,721.86 : 308,736.78 = 123,119.86 : x
  2. Step 2: Convert to fraction form
    223,721.86/308,736.78 = 123,119.86/x
  3. Step 3: Cross multiply
    223,721.86x = 308,736.78 × 123,119.86
  4. Step 4: Simplify right side
    223,721.86x = 38,011,629,130.45
  5. Step 5: Solve for x
    x = 38,011,629,130.45/223,721.86
  6. Step 6: Final answer
    x = 169,905.74

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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.