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Finding the Fourth Proportional to 171,055.50, 256,593.80 and 65,874.57

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Solution

The fourth proportional to 171,055.50, 256,593.80 and 65,874.57 is: 98,815.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,055.50 : 256,593.80 = 65,874.57 : x
  2. Step 2: Convert to fraction form
    171,055.50/256,593.80 = 65,874.57/x
  3. Step 3: Cross multiply
    171,055.50x = 256,593.80 × 65,874.57
  4. Step 4: Simplify right side
    171,055.50x = 16,903,006,239.67
  5. Step 5: Solve for x
    x = 16,903,006,239.67/171,055.50
  6. Step 6: Final answer
    x = 98,815.92

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.