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Finding the Fourth Proportional to 171,072.79, 256,652.93 and 71,199.79

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Solution

The fourth proportional to 171,072.79, 256,652.93 and 71,199.79 is: 106,817.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,072.79 : 256,652.93 = 71,199.79 : x
  2. Step 2: Convert to fraction form
    171,072.79/256,652.93 = 71,199.79/x
  3. Step 3: Cross multiply
    171,072.79x = 256,652.93 × 71,199.79
  4. Step 4: Simplify right side
    171,072.79x = 18,273,634,718.88
  5. Step 5: Solve for x
    x = 18,273,634,718.88/171,072.79
  6. Step 6: Final answer
    x = 106,817.89

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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.