Home / 171,204.16-256,667.06-71,438.66

Finding the Fourth Proportional to 171,204.16, 256,667.06 and 71,438.66

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Solution

The fourth proportional to 171,204.16, 256,667.06 and 71,438.66 is: 107,099.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,204.16 : 256,667.06 = 71,438.66 : x
  2. Step 2: Convert to fraction form
    171,204.16/256,667.06 = 71,438.66/x
  3. Step 3: Cross multiply
    171,204.16x = 256,667.06 × 71,438.66
  4. Step 4: Simplify right side
    171,204.16x = 18,335,950,832.54
  5. Step 5: Solve for x
    x = 18,335,950,832.54/171,204.16
  6. Step 6: Final answer
    x = 107,099.91

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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.