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Finding the Fourth Proportional to 103,378.68, 155,068.56 and 41,049.18

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Solution

The fourth proportional to 103,378.68, 155,068.56 and 41,049.18 is: 61,573.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,378.68 : 155,068.56 = 41,049.18 : x
  2. Step 2: Convert to fraction form
    103,378.68/155,068.56 = 41,049.18/x
  3. Step 3: Cross multiply
    103,378.68x = 155,068.56 × 41,049.18
  4. Step 4: Simplify right side
    103,378.68x = 6,365,437,231.78
  5. Step 5: Solve for x
    x = 6,365,437,231.78/103,378.68
  6. Step 6: Final answer
    x = 61,573.98

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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.