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Finding the Fourth Proportional to 112,124.54, 154,769.36 and 66,816.73

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Solution

The fourth proportional to 112,124.54, 154,769.36 and 66,816.73 is: 92,229.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,124.54 : 154,769.36 = 66,816.73 : x
  2. Step 2: Convert to fraction form
    112,124.54/154,769.36 = 66,816.73/x
  3. Step 3: Cross multiply
    112,124.54x = 154,769.36 × 66,816.73
  4. Step 4: Simplify right side
    112,124.54x = 10,341,182,539.39
  5. Step 5: Solve for x
    x = 10,341,182,539.39/112,124.54
  6. Step 6: Final answer
    x = 92,229.43

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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.