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Finding the Fourth Proportional to 120,657.80, 166,524.98 and 69,660.34

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Solution

The fourth proportional to 120,657.80, 166,524.98 and 69,660.34 is: 96,141.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,657.80 : 166,524.98 = 69,660.34 : x
  2. Step 2: Convert to fraction form
    120,657.80/166,524.98 = 69,660.34/x
  3. Step 3: Cross multiply
    120,657.80x = 166,524.98 × 69,660.34
  4. Step 4: Simplify right side
    120,657.80x = 11,600,186,725.29
  5. Step 5: Solve for x
    x = 11,600,186,725.29/120,657.80
  6. Step 6: Final answer
    x = 96,141.21

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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.