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Finding the Fourth Proportional to 133,643.75, 200,437.41 and 79,632.38

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Solution

The fourth proportional to 133,643.75, 200,437.41 and 79,632.38 is: 119,431.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,643.75 : 200,437.41 = 79,632.38 : x
  2. Step 2: Convert to fraction form
    133,643.75/200,437.41 = 79,632.38/x
  3. Step 3: Cross multiply
    133,643.75x = 200,437.41 × 79,632.38
  4. Step 4: Simplify right side
    133,643.75x = 15,961,307,447.62
  5. Step 5: Solve for x
    x = 15,961,307,447.62/133,643.75
  6. Step 6: Final answer
    x = 119,431.75

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1.5x scale

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.