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Finding the Fourth Proportional to 168,745.80, 253,215.90 and 63,640.20

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Solution

The fourth proportional to 168,745.80, 253,215.90 and 63,640.20 is: 95,496.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,745.80 : 253,215.90 = 63,640.20 : x
  2. Step 2: Convert to fraction form
    168,745.80/253,215.90 = 63,640.20/x
  3. Step 3: Cross multiply
    168,745.80x = 253,215.90 × 63,640.20
  4. Step 4: Simplify right side
    168,745.80x = 16,114,710,519.18
  5. Step 5: Solve for x
    x = 16,114,710,519.18/168,745.80
  6. Step 6: Final answer
    x = 95,496.96

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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.