Home / 165,964.52-228,996.64-105,513

Finding the Fourth Proportional to 165,964.52, 228,996.64 and 105,513

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Solution

The fourth proportional to 165,964.52, 228,996.64 and 105,513 is: 145,586.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,964.52 : 228,996.64 = 105,513 : x
  2. Step 2: Convert to fraction form
    165,964.52/228,996.64 = 105,513/x
  3. Step 3: Cross multiply
    165,964.52x = 228,996.64 × 105,513
  4. Step 4: Simplify right side
    165,964.52x = 24,162,122,476.32
  5. Step 5: Solve for x
    x = 24,162,122,476.32/165,964.52
  6. Step 6: Final answer
    x = 145,586.07

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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.