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Finding the Fourth Proportional to 104,344.54, 143,974.47 and 66,119.02

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Solution

The fourth proportional to 104,344.54, 143,974.47 and 66,119.02 is: 91,230.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,344.54 : 143,974.47 = 66,119.02 : x
  2. Step 2: Convert to fraction form
    104,344.54/143,974.47 = 66,119.02/x
  3. Step 3: Cross multiply
    104,344.54x = 143,974.47 × 66,119.02
  4. Step 4: Simplify right side
    104,344.54x = 9,519,450,861.42
  5. Step 5: Solve for x
    x = 9,519,450,861.42/104,344.54
  6. Step 6: Final answer
    x = 91,230.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.