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Finding the Fourth Proportional to 103,480.70, 155,080.67 and 47,251.10

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Solution

The fourth proportional to 103,480.70, 155,080.67 and 47,251.10 is: 70,812.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,480.70 : 155,080.67 = 47,251.10 : x
  2. Step 2: Convert to fraction form
    103,480.70/155,080.67 = 47,251.10/x
  3. Step 3: Cross multiply
    103,480.70x = 155,080.67 × 47,251.10
  4. Step 4: Simplify right side
    103,480.70x = 7,327,731,234.58
  5. Step 5: Solve for x
    x = 7,327,731,234.58/103,480.70
  6. Step 6: Final answer
    x = 70,812.54

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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.