Home / 169,137.42-253,684.25-80,447.28

Finding the Fourth Proportional to 169,137.42, 253,684.25 and 80,447.28

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Solution

The fourth proportional to 169,137.42, 253,684.25 and 80,447.28 is: 120,660.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,137.42 : 253,684.25 = 80,447.28 : x
  2. Step 2: Convert to fraction form
    169,137.42/253,684.25 = 80,447.28/x
  3. Step 3: Cross multiply
    169,137.42x = 253,684.25 × 80,447.28
  4. Step 4: Simplify right side
    169,137.42x = 20,408,207,291.98
  5. Step 5: Solve for x
    x = 20,408,207,291.98/169,137.42
  6. Step 6: Final answer
    x = 120,660.51

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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.