Home / 149,986.66-207,033.72-86,349.82

Finding the Fourth Proportional to 149,986.66, 207,033.72 and 86,349.82

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Solution

The fourth proportional to 149,986.66, 207,033.72 and 86,349.82 is: 119,192.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,986.66 : 207,033.72 = 86,349.82 : x
  2. Step 2: Convert to fraction form
    149,986.66/207,033.72 = 86,349.82/x
  3. Step 3: Cross multiply
    149,986.66x = 207,033.72 × 86,349.82
  4. Step 4: Simplify right side
    149,986.66x = 17,877,324,455.93
  5. Step 5: Solve for x
    x = 17,877,324,455.93/149,986.66
  6. Step 6: Final answer
    x = 119,192.76

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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.