Home / 121,849.20-168,194.24-83,734.95

Finding the Fourth Proportional to 121,849.20, 168,194.24 and 83,734.95

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Solution

The fourth proportional to 121,849.20, 168,194.24 and 83,734.95 is: 115,583.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,849.20 : 168,194.24 = 83,734.95 : x
  2. Step 2: Convert to fraction form
    121,849.20/168,194.24 = 83,734.95/x
  3. Step 3: Cross multiply
    121,849.20x = 168,194.24 × 83,734.95
  4. Step 4: Simplify right side
    121,849.20x = 14,083,736,276.69
  5. Step 5: Solve for x
    x = 14,083,736,276.69/121,849.20
  6. Step 6: Final answer
    x = 115,583.33

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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.