Home / 110,708.20-166,062.30-77,465.80

Finding the Fourth Proportional to 110,708.20, 166,062.30 and 77,465.80

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Solution

The fourth proportional to 110,708.20, 166,062.30 and 77,465.80 is: 116,198.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,708.20 : 166,062.30 = 77,465.80 : x
  2. Step 2: Convert to fraction form
    110,708.20/166,062.30 = 77,465.80/x
  3. Step 3: Cross multiply
    110,708.20x = 166,062.30 × 77,465.80
  4. Step 4: Simplify right side
    110,708.20x = 12,864,148,919.34
  5. Step 5: Solve for x
    x = 12,864,148,919.34/110,708.20
  6. Step 6: Final answer
    x = 116,198.70

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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.