Home / 203,848.48-305,655-79,043.68

Finding the Fourth Proportional to 203,848.48, 305,655 and 79,043.68

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Solution

The fourth proportional to 203,848.48, 305,655 and 79,043.68 is: 118,519.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,848.48 : 305,655 = 79,043.68 : x
  2. Step 2: Convert to fraction form
    203,848.48/305,655 = 79,043.68/x
  3. Step 3: Cross multiply
    203,848.48x = 305,655 × 79,043.68
  4. Step 4: Simplify right side
    203,848.48x = 24,160,096,010.40
  5. Step 5: Solve for x
    x = 24,160,096,010.40/203,848.48
  6. Step 6: Final answer
    x = 118,519.87

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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.