Home / 126,616.47-189,854.58-51,789.16

Finding the Fourth Proportional to 126,616.47, 189,854.58 and 51,789.16

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Solution

The fourth proportional to 126,616.47, 189,854.58 and 51,789.16 is: 77,655.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,616.47 : 189,854.58 = 51,789.16 : x
  2. Step 2: Convert to fraction form
    126,616.47/189,854.58 = 51,789.16/x
  3. Step 3: Cross multiply
    126,616.47x = 189,854.58 × 51,789.16
  4. Step 4: Simplify right side
    126,616.47x = 9,832,408,583.95
  5. Step 5: Solve for x
    x = 9,832,408,583.95/126,616.47
  6. Step 6: Final answer
    x = 77,655.05

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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.