Home / 126,645.92-189,969.10-51,766.00

Finding the Fourth Proportional to 126,645.92, 189,969.10 and 51,766.00

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Solution

The fourth proportional to 126,645.92, 189,969.10 and 51,766.00 is: 77,649.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,645.92 : 189,969.10 = 51,766.00 : x
  2. Step 2: Convert to fraction form
    126,645.92/189,969.10 = 51,766.00/x
  3. Step 3: Cross multiply
    126,645.92x = 189,969.10 × 51,766.00
  4. Step 4: Simplify right side
    126,645.92x = 9,833,939,826.26
  5. Step 5: Solve for x
    x = 9,833,939,826.26/126,645.92
  6. Step 6: Final answer
    x = 77,649.09

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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.