Home / 140,729.40-211,105.17-40,891.32

Finding the Fourth Proportional to 140,729.40, 211,105.17 and 40,891.32

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Solution

The fourth proportional to 140,729.40, 211,105.17 and 40,891.32 is: 61,340.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,729.40 : 211,105.17 = 40,891.32 : x
  2. Step 2: Convert to fraction form
    140,729.40/211,105.17 = 40,891.32/x
  3. Step 3: Cross multiply
    140,729.40x = 211,105.17 × 40,891.32
  4. Step 4: Simplify right side
    140,729.40x = 8,632,369,060.12
  5. Step 5: Solve for x
    x = 8,632,369,060.12/140,729.40
  6. Step 6: Final answer
    x = 61,340.20

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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.