Home / 102,789.05-154,241.89-40,503.29

Finding the Fourth Proportional to 102,789.05, 154,241.89 and 40,503.29

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Solution

The fourth proportional to 102,789.05, 154,241.89 and 40,503.29 is: 60,777.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,789.05 : 154,241.89 = 40,503.29 : x
  2. Step 2: Convert to fraction form
    102,789.05/154,241.89 = 40,503.29/x
  3. Step 3: Cross multiply
    102,789.05x = 154,241.89 × 40,503.29
  4. Step 4: Simplify right side
    102,789.05x = 6,247,303,128.35
  5. Step 5: Solve for x
    x = 6,247,303,128.35/102,789.05
  6. Step 6: Final answer
    x = 60,777.91

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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.