Home / 126,360.07-189,487.71-51,429.36

Finding the Fourth Proportional to 126,360.07, 189,487.71 and 51,429.36

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Solution

The fourth proportional to 126,360.07, 189,487.71 and 51,429.36 is: 77,122.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,360.07 : 189,487.71 = 51,429.36 : x
  2. Step 2: Convert to fraction form
    126,360.07/189,487.71 = 51,429.36/x
  3. Step 3: Cross multiply
    126,360.07x = 189,487.71 × 51,429.36
  4. Step 4: Simplify right side
    126,360.07x = 9,745,231,653.17
  5. Step 5: Solve for x
    x = 9,745,231,653.17/126,360.07
  6. Step 6: Final answer
    x = 77,122.71

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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.