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Finding the Fourth Proportional to 168,760.40, 253,140.84 and 68,920.60

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Solution

The fourth proportional to 168,760.40, 253,140.84 and 68,920.60 is: 103,381.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,760.40 : 253,140.84 = 68,920.60 : x
  2. Step 2: Convert to fraction form
    168,760.40/253,140.84 = 68,920.60/x
  3. Step 3: Cross multiply
    168,760.40x = 253,140.84 × 68,920.60
  4. Step 4: Simplify right side
    168,760.40x = 17,446,618,577.30
  5. Step 5: Solve for x
    x = 17,446,618,577.30/168,760.40
  6. Step 6: Final answer
    x = 103,381.00

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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.