Home / 103,147.25-154,015.17-92,404.28

Finding the Fourth Proportional to 103,147.25, 154,015.17 and 92,404.28

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Solution

The fourth proportional to 103,147.25, 154,015.17 and 92,404.28 is: 137,974.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,147.25 : 154,015.17 = 92,404.28 : x
  2. Step 2: Convert to fraction form
    103,147.25/154,015.17 = 92,404.28/x
  3. Step 3: Cross multiply
    103,147.25x = 154,015.17 × 92,404.28
  4. Step 4: Simplify right side
    103,147.25x = 14,231,660,122.85
  5. Step 5: Solve for x
    x = 14,231,660,122.85/103,147.25
  6. Step 6: Final answer
    x = 137,974.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.