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Finding the Fourth Proportional to 126,504, 189,774.54 and 51,628.68

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Solution

The fourth proportional to 126,504, 189,774.54 and 51,628.68 is: 77,450.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,504 : 189,774.54 = 51,628.68 : x
  2. Step 2: Convert to fraction form
    126,504/189,774.54 = 51,628.68/x
  3. Step 3: Cross multiply
    126,504x = 189,774.54 × 51,628.68
  4. Step 4: Simplify right side
    126,504x = 9,797,808,997.81
  5. Step 5: Solve for x
    x = 9,797,808,997.81/126,504
  6. Step 6: Final answer
    x = 77,450.59

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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.