Home / 112,771.62-155,629.89-62,467.38

Finding the Fourth Proportional to 112,771.62, 155,629.89 and 62,467.38

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Solution

The fourth proportional to 112,771.62, 155,629.89 and 62,467.38 is: 86,207.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,771.62 : 155,629.89 = 62,467.38 : x
  2. Step 2: Convert to fraction form
    112,771.62/155,629.89 = 62,467.38/x
  3. Step 3: Cross multiply
    112,771.62x = 155,629.89 × 62,467.38
  4. Step 4: Simplify right side
    112,771.62x = 9,721,791,477.99
  5. Step 5: Solve for x
    x = 9,721,791,477.99/112,771.62
  6. Step 6: Final answer
    x = 86,207.78

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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.