Home / 103,716.20-155,651.10-41,431.40

Finding the Fourth Proportional to 103,716.20, 155,651.10 and 41,431.40

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Solution

The fourth proportional to 103,716.20, 155,651.10 and 41,431.40 is: 62,177.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,716.20 : 155,651.10 = 41,431.40 : x
  2. Step 2: Convert to fraction form
    103,716.20/155,651.10 = 41,431.40/x
  3. Step 3: Cross multiply
    103,716.20x = 155,651.10 × 41,431.40
  4. Step 4: Simplify right side
    103,716.20x = 6,448,842,984.54
  5. Step 5: Solve for x
    x = 6,448,842,984.54/103,716.20
  6. Step 6: Final answer
    x = 62,177.78

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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.