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Finding the Fourth Proportional to 130,808.60, 196,212.96 and 60,649.64

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Solution

The fourth proportional to 130,808.60, 196,212.96 and 60,649.64 is: 90,974.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,808.60 : 196,212.96 = 60,649.64 : x
  2. Step 2: Convert to fraction form
    130,808.60/196,212.96 = 60,649.64/x
  3. Step 3: Cross multiply
    130,808.60x = 196,212.96 × 60,649.64
  4. Step 4: Simplify right side
    130,808.60x = 11,900,245,387.33
  5. Step 5: Solve for x
    x = 11,900,245,387.33/130,808.60
  6. Step 6: Final answer
    x = 90,974.49

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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.