Home / 103,614.12-155,421.20-28,734.27

Finding the Fourth Proportional to 103,614.12, 155,421.20 and 28,734.27

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Solution

The fourth proportional to 103,614.12, 155,421.20 and 28,734.27 is: 43,101.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,614.12 : 155,421.20 = 28,734.27 : x
  2. Step 2: Convert to fraction form
    103,614.12/155,421.20 = 28,734.27/x
  3. Step 3: Cross multiply
    103,614.12x = 155,421.20 × 28,734.27
  4. Step 4: Simplify right side
    103,614.12x = 4,465,914,580.85
  5. Step 5: Solve for x
    x = 4,465,914,580.85/103,614.12
  6. Step 6: Final answer
    x = 43,101.41

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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.