Home / 126,345.24-189,584.28-51,520.68

Finding the Fourth Proportional to 126,345.24, 189,584.28 and 51,520.68

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Solution

The fourth proportional to 126,345.24, 189,584.28 and 51,520.68 is: 77,308.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,345.24 : 189,584.28 = 51,520.68 : x
  2. Step 2: Convert to fraction form
    126,345.24/189,584.28 = 51,520.68/x
  3. Step 3: Cross multiply
    126,345.24x = 189,584.28 × 51,520.68
  4. Step 4: Simplify right side
    126,345.24x = 9,767,511,022.91
  5. Step 5: Solve for x
    x = 9,767,511,022.91/126,345.24
  6. Step 6: Final answer
    x = 77,308.10

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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.