Home / 117,623.20-176,434.80-111,791.20

Finding the Fourth Proportional to 117,623.20, 176,434.80 and 111,791.20

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Solution

The fourth proportional to 117,623.20, 176,434.80 and 111,791.20 is: 167,686.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,623.20 : 176,434.80 = 111,791.20 : x
  2. Step 2: Convert to fraction form
    117,623.20/176,434.80 = 111,791.20/x
  3. Step 3: Cross multiply
    117,623.20x = 176,434.80 × 111,791.20
  4. Step 4: Simplify right side
    117,623.20x = 19,723,858,013.76
  5. Step 5: Solve for x
    x = 19,723,858,013.76/117,623.20
  6. Step 6: Final answer
    x = 167,686.80

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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.