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Finding the Fourth Proportional to 121,601.17, 167,816.34 and 67,886.62

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Solution

The fourth proportional to 121,601.17, 167,816.34 and 67,886.62 is: 93,687.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,601.17 : 167,816.34 = 67,886.62 : x
  2. Step 2: Convert to fraction form
    121,601.17/167,816.34 = 67,886.62/x
  3. Step 3: Cross multiply
    121,601.17x = 167,816.34 × 67,886.62
  4. Step 4: Simplify right side
    121,601.17x = 11,392,484,103.37
  5. Step 5: Solve for x
    x = 11,392,484,103.37/121,601.17
  6. Step 6: Final answer
    x = 93,687.29

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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.