Home / 171,145.14-256,545.18-71,360.43

Finding the Fourth Proportional to 171,145.14, 256,545.18 and 71,360.43

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Solution

The fourth proportional to 171,145.14, 256,545.18 and 71,360.43 is: 106,968.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,145.14 : 256,545.18 = 71,360.43 : x
  2. Step 2: Convert to fraction form
    171,145.14/256,545.18 = 71,360.43/x
  3. Step 3: Cross multiply
    171,145.14x = 256,545.18 × 71,360.43
  4. Step 4: Simplify right side
    171,145.14x = 18,307,174,359.23
  5. Step 5: Solve for x
    x = 18,307,174,359.23/171,145.14
  6. Step 6: Final answer
    x = 106,968.71

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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.