Home / 167,760.81-231,433.63-99,739.20

Finding the Fourth Proportional to 167,760.81, 231,433.63 and 99,739.20

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Solution

The fourth proportional to 167,760.81, 231,433.63 and 99,739.20 is: 137,594.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,760.81 : 231,433.63 = 99,739.20 : x
  2. Step 2: Convert to fraction form
    167,760.81/231,433.63 = 99,739.20/x
  3. Step 3: Cross multiply
    167,760.81x = 231,433.63 × 99,739.20
  4. Step 4: Simplify right side
    167,760.81x = 23,083,005,109.30
  5. Step 5: Solve for x
    x = 23,083,005,109.30/167,760.81
  6. Step 6: Final answer
    x = 137,594.74

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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.