Home / 110,689.20-166,015.98-31,785.48

Finding the Fourth Proportional to 110,689.20, 166,015.98 and 31,785.48

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Solution

The fourth proportional to 110,689.20, 166,015.98 and 31,785.48 is: 47,673.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,689.20 : 166,015.98 = 31,785.48 : x
  2. Step 2: Convert to fraction form
    110,689.20/166,015.98 = 31,785.48/x
  3. Step 3: Cross multiply
    110,689.20x = 166,015.98 × 31,785.48
  4. Step 4: Simplify right side
    110,689.20x = 5,276,897,611.97
  5. Step 5: Solve for x
    x = 5,276,897,611.97/110,689.20
  6. Step 6: Final answer
    x = 47,673.10

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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.