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Finding the Fourth Proportional to 103,919.00, 155,872.67 and 40,750.34

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Solution

The fourth proportional to 103,919.00, 155,872.67 and 40,750.34 is: 61,123.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,919.00 : 155,872.67 = 40,750.34 : x
  2. Step 2: Convert to fraction form
    103,919.00/155,872.67 = 40,750.34/x
  3. Step 3: Cross multiply
    103,919.00x = 155,872.67 × 40,750.34
  4. Step 4: Simplify right side
    103,919.00x = 6,351,863,316.09
  5. Step 5: Solve for x
    x = 6,351,863,316.09/103,919.00
  6. Step 6: Final answer
    x = 61,123.22

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Why These Related Problems?

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