Home / 97,905.20-146,906.40-38,742.80

Finding the Fourth Proportional to 97,905.20, 146,906.40 and 38,742.80

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Solution

The fourth proportional to 97,905.20, 146,906.40 and 38,742.80 is: 58,133.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,905.20 : 146,906.40 = 38,742.80 : x
  2. Step 2: Convert to fraction form
    97,905.20/146,906.40 = 38,742.80/x
  3. Step 3: Cross multiply
    97,905.20x = 146,906.40 × 38,742.80
  4. Step 4: Simplify right side
    97,905.20x = 5,691,565,273.92
  5. Step 5: Solve for x
    x = 5,691,565,273.92/97,905.20
  6. Step 6: Final answer
    x = 58,133.43

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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.