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Finding the Fourth Proportional to 103,618.45, 155,427.68 and 95,453.65

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Solution

The fourth proportional to 103,618.45, 155,427.68 and 95,453.65 is: 143,180.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,618.45 : 155,427.68 = 95,453.65 : x
  2. Step 2: Convert to fraction form
    103,618.45/155,427.68 = 95,453.65/x
  3. Step 3: Cross multiply
    103,618.45x = 155,427.68 × 95,453.65
  4. Step 4: Simplify right side
    103,618.45x = 14,836,139,367.03
  5. Step 5: Solve for x
    x = 14,836,139,367.03/103,618.45
  6. Step 6: Final answer
    x = 143,180.48

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.