Home / 167,528.90-231,190.80-91,048.70

Finding the Fourth Proportional to 167,528.90, 231,190.80 and 91,048.70

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Solution

The fourth proportional to 167,528.90, 231,190.80 and 91,048.70 is: 125,647.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,528.90 : 231,190.80 = 91,048.70 : x
  2. Step 2: Convert to fraction form
    167,528.90/231,190.80 = 91,048.70/x
  3. Step 3: Cross multiply
    167,528.90x = 231,190.80 × 91,048.70
  4. Step 4: Simplify right side
    167,528.90x = 21,049,621,791.96
  5. Step 5: Solve for x
    x = 21,049,621,791.96/167,528.90
  6. Step 6: Final answer
    x = 125,647.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.