Home / 109,310.54-163,965.83-84,386.97

Finding the Fourth Proportional to 109,310.54, 163,965.83 and 84,386.97

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Solution

The fourth proportional to 109,310.54, 163,965.83 and 84,386.97 is: 126,580.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,310.54 : 163,965.83 = 84,386.97 : x
  2. Step 2: Convert to fraction form
    109,310.54/163,965.83 = 84,386.97/x
  3. Step 3: Cross multiply
    109,310.54x = 163,965.83 × 84,386.97
  4. Step 4: Simplify right side
    109,310.54x = 13,836,579,155.30
  5. Step 5: Solve for x
    x = 13,836,579,155.30/109,310.54
  6. Step 6: Final answer
    x = 126,580.47

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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.