Home / 103,170.78-154,756.22-68,102.24

Finding the Fourth Proportional to 103,170.78, 154,756.22 and 68,102.24

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Solution

The fourth proportional to 103,170.78, 154,756.22 and 68,102.24 is: 102,153.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,170.78 : 154,756.22 = 68,102.24 : x
  2. Step 2: Convert to fraction form
    103,170.78/154,756.22 = 68,102.24/x
  3. Step 3: Cross multiply
    103,170.78x = 154,756.22 × 68,102.24
  4. Step 4: Simplify right side
    103,170.78x = 10,539,245,235.93
  5. Step 5: Solve for x
    x = 10,539,245,235.93/103,170.78
  6. Step 6: Final answer
    x = 102,153.39

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1.5x scale

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.