Home / 111,738.93-154,177.56-62,682.12

Finding the Fourth Proportional to 111,738.93, 154,177.56 and 62,682.12

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Solution

The fourth proportional to 111,738.93, 154,177.56 and 62,682.12 is: 86,488.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,738.93 : 154,177.56 = 62,682.12 : x
  2. Step 2: Convert to fraction form
    111,738.93/154,177.56 = 62,682.12/x
  3. Step 3: Cross multiply
    111,738.93x = 154,177.56 × 62,682.12
  4. Step 4: Simplify right side
    111,738.93x = 9,664,176,317.23
  5. Step 5: Solve for x
    x = 9,664,176,317.23/111,738.93
  6. Step 6: Final answer
    x = 86,488.90

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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.