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Finding the Fourth Proportional to 171,945.59, 257,450.91 and 100,763.29

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Solution

The fourth proportional to 171,945.59, 257,450.91 and 100,763.29 is: 150,870.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,945.59 : 257,450.91 = 100,763.29 : x
  2. Step 2: Convert to fraction form
    171,945.59/257,450.91 = 100,763.29/x
  3. Step 3: Cross multiply
    171,945.59x = 257,450.91 × 100,763.29
  4. Step 4: Simplify right side
    171,945.59x = 25,941,600,649.05
  5. Step 5: Solve for x
    x = 25,941,600,649.05/171,945.59
  6. Step 6: Final answer
    x = 150,870.99

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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.