Home / 169,558.20-254,337.30-103,128.60

Finding the Fourth Proportional to 169,558.20, 254,337.30 and 103,128.60

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Solution

The fourth proportional to 169,558.20, 254,337.30 and 103,128.60 is: 154,692.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,558.20 : 254,337.30 = 103,128.60 : x
  2. Step 2: Convert to fraction form
    169,558.20/254,337.30 = 103,128.60/x
  3. Step 3: Cross multiply
    169,558.20x = 254,337.30 × 103,128.60
  4. Step 4: Simplify right side
    169,558.20x = 26,229,449,676.78
  5. Step 5: Solve for x
    x = 26,229,449,676.78/169,558.20
  6. Step 6: Final answer
    x = 154,692.90

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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.