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Finding the Fourth Proportional to 111,036.60, 166,733.10 and 102,850.20

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Solution

The fourth proportional to 111,036.60, 166,733.10 and 102,850.20 is: 154,440.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,036.60 : 166,733.10 = 102,850.20 : x
  2. Step 2: Convert to fraction form
    111,036.60/166,733.10 = 102,850.20/x
  3. Step 3: Cross multiply
    111,036.60x = 166,733.10 × 102,850.20
  4. Step 4: Simplify right side
    111,036.60x = 17,148,532,681.62
  5. Step 5: Solve for x
    x = 17,148,532,681.62/111,036.60
  6. Step 6: Final answer
    x = 154,440.36

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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.