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Finding the Fourth Proportional to 103,836.80, 155,697.60 and 41,436.80

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Solution

The fourth proportional to 103,836.80, 155,697.60 and 41,436.80 is: 62,132.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,836.80 : 155,697.60 = 41,436.80 : x
  2. Step 2: Convert to fraction form
    103,836.80/155,697.60 = 41,436.80/x
  3. Step 3: Cross multiply
    103,836.80x = 155,697.60 × 41,436.80
  4. Step 4: Simplify right side
    103,836.80x = 6,451,610,311.68
  5. Step 5: Solve for x
    x = 6,451,610,311.68/103,836.80
  6. Step 6: Final answer
    x = 62,132.21

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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.