Home / 126,289.68-189,269.97-51,322.20

Finding the Fourth Proportional to 126,289.68, 189,269.97 and 51,322.20

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Solution

The fourth proportional to 126,289.68, 189,269.97 and 51,322.20 is: 76,916.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,289.68 : 189,269.97 = 51,322.20 : x
  2. Step 2: Convert to fraction form
    126,289.68/189,269.97 = 51,322.20/x
  3. Step 3: Cross multiply
    126,289.68x = 189,269.97 × 51,322.20
  4. Step 4: Simplify right side
    126,289.68x = 9,713,751,254.33
  5. Step 5: Solve for x
    x = 9,713,751,254.33/126,289.68
  6. Step 6: Final answer
    x = 76,916.43

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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.