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Finding the Fourth Proportional to 102,936.60, 154,404.90 and 36,378.90

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Solution

The fourth proportional to 102,936.60, 154,404.90 and 36,378.90 is: 54,568.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,936.60 : 154,404.90 = 36,378.90 : x
  2. Step 2: Convert to fraction form
    102,936.60/154,404.90 = 36,378.90/x
  3. Step 3: Cross multiply
    102,936.60x = 154,404.90 × 36,378.90
  4. Step 4: Simplify right side
    102,936.60x = 5,617,080,416.61
  5. Step 5: Solve for x
    x = 5,617,080,416.61/102,936.60
  6. Step 6: Final answer
    x = 54,568.35

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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.