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Finding the Fourth Proportional to 103,704.10, 155,446.80 and 40,499.80

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Solution

The fourth proportional to 103,704.10, 155,446.80 and 40,499.80 is: 60,707.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,704.10 : 155,446.80 = 40,499.80 : x
  2. Step 2: Convert to fraction form
    103,704.10/155,446.80 = 40,499.80/x
  3. Step 3: Cross multiply
    103,704.10x = 155,446.80 × 40,499.80
  4. Step 4: Simplify right side
    103,704.10x = 6,295,564,310.64
  5. Step 5: Solve for x
    x = 6,295,564,310.64/103,704.10
  6. Step 6: Final answer
    x = 60,707.00

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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.