Home / 110,781.80-166,140.30-39,696.20

Finding the Fourth Proportional to 110,781.80, 166,140.30 and 39,696.20

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Solution

The fourth proportional to 110,781.80, 166,140.30 and 39,696.20 is: 59,532.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,781.80 : 166,140.30 = 39,696.20 : x
  2. Step 2: Convert to fraction form
    110,781.80/166,140.30 = 39,696.20/x
  3. Step 3: Cross multiply
    110,781.80x = 166,140.30 × 39,696.20
  4. Step 4: Simplify right side
    110,781.80x = 6,595,138,576.86
  5. Step 5: Solve for x
    x = 6,595,138,576.86/110,781.80
  6. Step 6: Final answer
    x = 59,532.69

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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.