Home / 111,291.04-166,936.56-28,178.56

Finding the Fourth Proportional to 111,291.04, 166,936.56 and 28,178.56

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Solution

The fourth proportional to 111,291.04, 166,936.56 and 28,178.56 is: 42,267.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,291.04 : 166,936.56 = 28,178.56 : x
  2. Step 2: Convert to fraction form
    111,291.04/166,936.56 = 28,178.56/x
  3. Step 3: Cross multiply
    111,291.04x = 166,936.56 × 28,178.56
  4. Step 4: Simplify right side
    111,291.04x = 4,704,031,872.15
  5. Step 5: Solve for x
    x = 4,704,031,872.15/111,291.04
  6. Step 6: Final answer
    x = 42,267.84

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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.