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Finding the Fourth Proportional to 111,246.80, 166,837.80 and 40,161.20

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Solution

The fourth proportional to 111,246.80, 166,837.80 and 40,161.20 is: 60,230.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,246.80 : 166,837.80 = 40,161.20 : x
  2. Step 2: Convert to fraction form
    111,246.80/166,837.80 = 40,161.20/x
  3. Step 3: Cross multiply
    111,246.80x = 166,837.80 × 40,161.20
  4. Step 4: Simplify right side
    111,246.80x = 6,700,406,253.36
  5. Step 5: Solve for x
    x = 6,700,406,253.36/111,246.80
  6. Step 6: Final answer
    x = 60,230.10

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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.