Home / 193,371.55-266,868.81-107,338.61

Finding the Fourth Proportional to 193,371.55, 266,868.81 and 107,338.61

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Solution

The fourth proportional to 193,371.55, 266,868.81 and 107,338.61 is: 148,136.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,371.55 : 266,868.81 = 107,338.61 : x
  2. Step 2: Convert to fraction form
    193,371.55/266,868.81 = 107,338.61/x
  3. Step 3: Cross multiply
    193,371.55x = 266,868.81 × 107,338.61
  4. Step 4: Simplify right side
    193,371.55x = 28,645,327,784.93
  5. Step 5: Solve for x
    x = 28,645,327,784.93/193,371.55
  6. Step 6: Final answer
    x = 148,136.21

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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.