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Finding the Fourth Proportional to 171,089.85, 256,496.13 and 71,324.85

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Solution

The fourth proportional to 171,089.85, 256,496.13 and 71,324.85 is: 106,929.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,089.85 : 256,496.13 = 71,324.85 : x
  2. Step 2: Convert to fraction form
    171,089.85/256,496.13 = 71,324.85/x
  3. Step 3: Cross multiply
    171,089.85x = 256,496.13 × 71,324.85
  4. Step 4: Simplify right side
    171,089.85x = 18,294,547,997.83
  5. Step 5: Solve for x
    x = 18,294,547,997.83/171,089.85
  6. Step 6: Final answer
    x = 106,929.48

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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.