Home / 103,604.36-155,301.96-40,385

Finding the Fourth Proportional to 103,604.36, 155,301.96 and 40,385

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Solution

The fourth proportional to 103,604.36, 155,301.96 and 40,385 is: 60,536.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,604.36 : 155,301.96 = 40,385 : x
  2. Step 2: Convert to fraction form
    103,604.36/155,301.96 = 40,385/x
  3. Step 3: Cross multiply
    103,604.36x = 155,301.96 × 40,385
  4. Step 4: Simplify right side
    103,604.36x = 6,271,869,654.60
  5. Step 5: Solve for x
    x = 6,271,869,654.60/103,604.36
  6. Step 6: Final answer
    x = 60,536.73

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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.