Home / 74,788.03-102,997.52-73,155.07

Finding the Fourth Proportional to 74,788.03, 102,997.52 and 73,155.07

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Solution

The fourth proportional to 74,788.03, 102,997.52 and 73,155.07 is: 100,748.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,788.03 : 102,997.52 = 73,155.07 : x
  2. Step 2: Convert to fraction form
    74,788.03/102,997.52 = 73,155.07/x
  3. Step 3: Cross multiply
    74,788.03x = 102,997.52 × 73,155.07
  4. Step 4: Simplify right side
    74,788.03x = 7,534,790,785.43
  5. Step 5: Solve for x
    x = 7,534,790,785.43/74,788.03
  6. Step 6: Final answer
    x = 100,748.62

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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.