Home / 121,936.23-168,278.54-68,218.04

Finding the Fourth Proportional to 121,936.23, 168,278.54 and 68,218.04

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Solution

The fourth proportional to 121,936.23, 168,278.54 and 68,218.04 is: 94,144.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,936.23 : 168,278.54 = 68,218.04 : x
  2. Step 2: Convert to fraction form
    121,936.23/168,278.54 = 68,218.04/x
  3. Step 3: Cross multiply
    121,936.23x = 168,278.54 × 68,218.04
  4. Step 4: Simplify right side
    121,936.23x = 11,479,630,990.38
  5. Step 5: Solve for x
    x = 11,479,630,990.38/121,936.23
  6. Step 6: Final answer
    x = 94,144.55

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1.5x scale

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.