Home / 111,252.62-166,988.57-79,267.22

Finding the Fourth Proportional to 111,252.62, 166,988.57 and 79,267.22

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Solution

The fourth proportional to 111,252.62, 166,988.57 and 79,267.22 is: 118,978.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,252.62 : 166,988.57 = 79,267.22 : x
  2. Step 2: Convert to fraction form
    111,252.62/166,988.57 = 79,267.22/x
  3. Step 3: Cross multiply
    111,252.62x = 166,988.57 × 79,267.22
  4. Step 4: Simplify right side
    111,252.62x = 13,236,720,389.90
  5. Step 5: Solve for x
    x = 13,236,720,389.90/111,252.62
  6. Step 6: Final answer
    x = 118,978.95

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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.