Home / 107,974.62-148,971.94-62,636.89

Finding the Fourth Proportional to 107,974.62, 148,971.94 and 62,636.89

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Solution

The fourth proportional to 107,974.62, 148,971.94 and 62,636.89 is: 86,419.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,974.62 : 148,971.94 = 62,636.89 : x
  2. Step 2: Convert to fraction form
    107,974.62/148,971.94 = 62,636.89/x
  3. Step 3: Cross multiply
    107,974.62x = 148,971.94 × 62,636.89
  4. Step 4: Simplify right side
    107,974.62x = 9,331,139,018.87
  5. Step 5: Solve for x
    x = 9,331,139,018.87/107,974.62
  6. Step 6: Final answer
    x = 86,419.74

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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.