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Finding the Fourth Proportional to 121,696.62, 167,750.82 and 111,920.73

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Solution

The fourth proportional to 121,696.62, 167,750.82 and 111,920.73 is: 154,275.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,696.62 : 167,750.82 = 111,920.73 : x
  2. Step 2: Convert to fraction form
    121,696.62/167,750.82 = 111,920.73/x
  3. Step 3: Cross multiply
    121,696.62x = 167,750.82 × 111,920.73
  4. Step 4: Simplify right side
    121,696.62x = 18,774,794,232.50
  5. Step 5: Solve for x
    x = 18,774,794,232.50/121,696.62
  6. Step 6: Final answer
    x = 154,275.40

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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.