Home / 74,788.29-102,997.86-73,155.33

Finding the Fourth Proportional to 74,788.29, 102,997.86 and 73,155.33

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Solution

The fourth proportional to 74,788.29, 102,997.86 and 73,155.33 is: 100,748.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,788.29 : 102,997.86 = 73,155.33 : x
  2. Step 2: Convert to fraction form
    74,788.29/102,997.86 = 73,155.33/x
  3. Step 3: Cross multiply
    74,788.29x = 102,997.86 × 73,155.33
  4. Step 4: Simplify right side
    74,788.29x = 7,534,842,437.59
  5. Step 5: Solve for x
    x = 7,534,842,437.59/74,788.29
  6. Step 6: Final answer
    x = 100,748.96

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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.