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Finding the Fourth Proportional to 103,623.67, 155,232.09 and 53,736.37

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Solution

The fourth proportional to 103,623.67, 155,232.09 and 53,736.37 is: 80,499.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,623.67 : 155,232.09 = 53,736.37 : x
  2. Step 2: Convert to fraction form
    103,623.67/155,232.09 = 53,736.37/x
  3. Step 3: Cross multiply
    103,623.67x = 155,232.09 × 53,736.37
  4. Step 4: Simplify right side
    103,623.67x = 8,341,609,024.11
  5. Step 5: Solve for x
    x = 8,341,609,024.11/103,623.67
  6. Step 6: Final answer
    x = 80,499.07

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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.