Home / 189,858.96-261,946.17-126,207.54

Finding the Fourth Proportional to 189,858.96, 261,946.17 and 126,207.54

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Solution

The fourth proportional to 189,858.96, 261,946.17 and 126,207.54 is: 174,127.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,858.96 : 261,946.17 = 126,207.54 : x
  2. Step 2: Convert to fraction form
    189,858.96/261,946.17 = 126,207.54/x
  3. Step 3: Cross multiply
    189,858.96x = 261,946.17 × 126,207.54
  4. Step 4: Simplify right side
    189,858.96x = 33,059,581,728.12
  5. Step 5: Solve for x
    x = 33,059,581,728.12/189,858.96
  6. Step 6: Final answer
    x = 174,127.06

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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.