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Finding the Fourth Proportional to 120,379.33, 180,526.40 and 34,972.42

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Solution

The fourth proportional to 120,379.33, 180,526.40 and 34,972.42 is: 52,446.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,379.33 : 180,526.40 = 34,972.42 : x
  2. Step 2: Convert to fraction form
    120,379.33/180,526.40 = 34,972.42/x
  3. Step 3: Cross multiply
    120,379.33x = 180,526.40 × 34,972.42
  4. Step 4: Simplify right side
    120,379.33x = 6,313,445,375.93
  5. Step 5: Solve for x
    x = 6,313,445,375.93/120,379.33
  6. Step 6: Final answer
    x = 52,446.26

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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.