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Finding the Fourth Proportional to 103,583.70, 155,500.02 and 70,202.49

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Solution

The fourth proportional to 103,583.70, 155,500.02 and 70,202.49 is: 105,388.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,583.70 : 155,500.02 = 70,202.49 : x
  2. Step 2: Convert to fraction form
    103,583.70/155,500.02 = 70,202.49/x
  3. Step 3: Cross multiply
    103,583.70x = 155,500.02 × 70,202.49
  4. Step 4: Simplify right side
    103,583.70x = 10,916,488,599.05
  5. Step 5: Solve for x
    x = 10,916,488,599.05/103,583.70
  6. Step 6: Final answer
    x = 105,388.09

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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.