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Finding the Fourth Proportional to 126,080.52, 189,194.48 and 69,967.76

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Solution

The fourth proportional to 126,080.52, 189,194.48 and 69,967.76 is: 104,992.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,080.52 : 189,194.48 = 69,967.76 : x
  2. Step 2: Convert to fraction form
    126,080.52/189,194.48 = 69,967.76/x
  3. Step 3: Cross multiply
    126,080.52x = 189,194.48 × 69,967.76
  4. Step 4: Simplify right side
    126,080.52x = 13,237,513,969.96
  5. Step 5: Solve for x
    x = 13,237,513,969.96/126,080.52
  6. Step 6: Final answer
    x = 104,992.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.