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Finding the Fourth Proportional to 132,040.80, 197,600.40 and 120,981.60

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Solution

The fourth proportional to 132,040.80, 197,600.40 and 120,981.60 is: 181,050.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,040.80 : 197,600.40 = 120,981.60 : x
  2. Step 2: Convert to fraction form
    132,040.80/197,600.40 = 120,981.60/x
  3. Step 3: Cross multiply
    132,040.80x = 197,600.40 × 120,981.60
  4. Step 4: Simplify right side
    132,040.80x = 23,906,012,552.64
  5. Step 5: Solve for x
    x = 23,906,012,552.64/132,040.80
  6. Step 6: Final answer
    x = 181,050.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.