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Finding the Fourth Proportional to 146,172.42, 201,717.90 and 79,104.42

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Solution

The fourth proportional to 146,172.42, 201,717.90 and 79,104.42 is: 109,164.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,172.42 : 201,717.90 = 79,104.42 : x
  2. Step 2: Convert to fraction form
    146,172.42/201,717.90 = 79,104.42/x
  3. Step 3: Cross multiply
    146,172.42x = 201,717.90 × 79,104.42
  4. Step 4: Simplify right side
    146,172.42x = 15,956,777,483.12
  5. Step 5: Solve for x
    x = 15,956,777,483.12/146,172.42
  6. Step 6: Final answer
    x = 109,164.08

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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.