Home / 126,054.57-189,078.02-51,172.91

Finding the Fourth Proportional to 126,054.57, 189,078.02 and 51,172.91

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Solution

The fourth proportional to 126,054.57, 189,078.02 and 51,172.91 is: 76,757.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,054.57 : 189,078.02 = 51,172.91 : x
  2. Step 2: Convert to fraction form
    126,054.57/189,078.02 = 51,172.91/x
  3. Step 3: Cross multiply
    126,054.57x = 189,078.02 × 51,172.91
  4. Step 4: Simplify right side
    126,054.57x = 9,675,671,682.98
  5. Step 5: Solve for x
    x = 9,675,671,682.98/126,054.57
  6. Step 6: Final answer
    x = 76,757.80

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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.