Home / 121,934.19-168,267.72-68,219.04

Finding the Fourth Proportional to 121,934.19, 168,267.72 and 68,219.04

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Solution

The fourth proportional to 121,934.19, 168,267.72 and 68,219.04 is: 94,141.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,934.19 : 168,267.72 = 68,219.04 : x
  2. Step 2: Convert to fraction form
    121,934.19/168,267.72 = 68,219.04/x
  3. Step 3: Cross multiply
    121,934.19x = 168,267.72 × 68,219.04
  4. Step 4: Simplify right side
    121,934.19x = 11,479,062,321.39
  5. Step 5: Solve for x
    x = 11,479,062,321.39/121,934.19
  6. Step 6: Final answer
    x = 94,141.46

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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.