Home / 223,719.54-308,733.99-128,231.82

Finding the Fourth Proportional to 223,719.54, 308,733.99 and 128,231.82

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Solution

The fourth proportional to 223,719.54, 308,733.99 and 128,231.82 is: 176,960.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,719.54 : 308,733.99 = 128,231.82 : x
  2. Step 2: Convert to fraction form
    223,719.54/308,733.99 = 128,231.82/x
  3. Step 3: Cross multiply
    223,719.54x = 308,733.99 × 128,231.82
  4. Step 4: Simplify right side
    223,719.54x = 39,589,521,433.56
  5. Step 5: Solve for x
    x = 39,589,521,433.56/223,719.54
  6. Step 6: Final answer
    x = 176,960.50

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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.