Home / 165,623.31-228,528.68-105,203.79

Finding the Fourth Proportional to 165,623.31, 228,528.68 and 105,203.79

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Solution

The fourth proportional to 165,623.31, 228,528.68 and 105,203.79 is: 145,161.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,623.31 : 228,528.68 = 105,203.79 : x
  2. Step 2: Convert to fraction form
    165,623.31/228,528.68 = 105,203.79/x
  3. Step 3: Cross multiply
    165,623.31x = 228,528.68 × 105,203.79
  4. Step 4: Simplify right side
    165,623.31x = 24,042,082,733.68
  5. Step 5: Solve for x
    x = 24,042,082,733.68/165,623.31
  6. Step 6: Final answer
    x = 145,161.23

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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.