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Finding the Fourth Proportional to 171,091.67, 256,681.26 and 71,218.67

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Solution

The fourth proportional to 171,091.67, 256,681.26 and 71,218.67 is: 106,846.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,091.67 : 256,681.26 = 71,218.67 : x
  2. Step 2: Convert to fraction form
    171,091.67/256,681.26 = 71,218.67/x
  3. Step 3: Cross multiply
    171,091.67x = 256,681.26 × 71,218.67
  4. Step 4: Simplify right side
    171,091.67x = 18,280,496,667.72
  5. Step 5: Solve for x
    x = 18,280,496,667.72/171,091.67
  6. Step 6: Final answer
    x = 106,846.21

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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.