Home / 111,105,153.44-165,981,972.97-71,924,416.36

Finding the Fourth Proportional to 111,105,153.44, 165,981,972.97 and 71,924,416.36

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Solution

The fourth proportional to 111,105,153.44, 165,981,972.97 and 71,924,416.36 is: 107,449,170.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,105,153.44 : 165,981,972.97 = 71,924,416.36 : x
  2. Step 2: Convert to fraction form
    111,105,153.44/165,981,972.97 = 71,924,416.36/x
  3. Step 3: Cross multiply
    111,105,153.44x = 165,981,972.97 × 71,924,416.36
  4. Step 4: Simplify right side
    111,105,153.44x = 11,938,156,532,148,546
  5. Step 5: Solve for x
    x = 11,938,156,532,148,546/111,105,153.44
  6. Step 6: Final answer
    x = 107,449,170.11

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.