Home / 126,038.20-189,057.30-51,194.20

Finding the Fourth Proportional to 126,038.20, 189,057.30 and 51,194.20

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Solution

The fourth proportional to 126,038.20, 189,057.30 and 51,194.20 is: 76,791.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,038.20 : 189,057.30 = 51,194.20 : x
  2. Step 2: Convert to fraction form
    126,038.20/189,057.30 = 51,194.20/x
  3. Step 3: Cross multiply
    126,038.20x = 189,057.30 × 51,194.20
  4. Step 4: Simplify right side
    126,038.20x = 9,678,637,227.66
  5. Step 5: Solve for x
    x = 9,678,637,227.66/126,038.20
  6. Step 6: Final answer
    x = 76,791.30

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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.