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Finding the Fourth Proportional to 101,890.08, 140,569.71 and 75,096.63

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Solution

The fourth proportional to 101,890.08, 140,569.71 and 75,096.63 is: 103,604.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,890.08 : 140,569.71 = 75,096.63 : x
  2. Step 2: Convert to fraction form
    101,890.08/140,569.71 = 75,096.63/x
  3. Step 3: Cross multiply
    101,890.08x = 140,569.71 × 75,096.63
  4. Step 4: Simplify right side
    101,890.08x = 10,556,311,501.08
  5. Step 5: Solve for x
    x = 10,556,311,501.08/101,890.08
  6. Step 6: Final answer
    x = 103,604.90

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