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Finding the Fourth Proportional to 103,620.70, 155,495.05 and 41,284.70

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Solution

The fourth proportional to 103,620.70, 155,495.05 and 41,284.70 is: 61,952.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,620.70 : 155,495.05 = 41,284.70 : x
  2. Step 2: Convert to fraction form
    103,620.70/155,495.05 = 41,284.70/x
  3. Step 3: Cross multiply
    103,620.70x = 155,495.05 × 41,284.70
  4. Step 4: Simplify right side
    103,620.70x = 6,419,566,490.74
  5. Step 5: Solve for x
    x = 6,419,566,490.74/103,620.70
  6. Step 6: Final answer
    x = 61,952.55

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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.