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Finding the Fourth Proportional to 135,649.60, 203,668.80 and 102,601.60

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Solution

The fourth proportional to 135,649.60, 203,668.80 and 102,601.60 is: 154,049.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,649.60 : 203,668.80 = 102,601.60 : x
  2. Step 2: Convert to fraction form
    135,649.60/203,668.80 = 102,601.60/x
  3. Step 3: Cross multiply
    135,649.60x = 203,668.80 × 102,601.60
  4. Step 4: Simplify right side
    135,649.60x = 20,896,744,750.08
  5. Step 5: Solve for x
    x = 20,896,744,750.08/135,649.60
  6. Step 6: Final answer
    x = 154,049.44

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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.