Home / 122,155.27-168,656.66-76,284.97

Finding the Fourth Proportional to 122,155.27, 168,656.66 and 76,284.97

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Solution

The fourth proportional to 122,155.27, 168,656.66 and 76,284.97 is: 105,324.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,155.27 : 168,656.66 = 76,284.97 : x
  2. Step 2: Convert to fraction form
    122,155.27/168,656.66 = 76,284.97/x
  3. Step 3: Cross multiply
    122,155.27x = 168,656.66 × 76,284.97
  4. Step 4: Simplify right side
    122,155.27x = 12,865,967,866.98
  5. Step 5: Solve for x
    x = 12,865,967,866.98/122,155.27
  6. Step 6: Final answer
    x = 105,324.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.