Home / 104,780.26-157,104.64-76,327.39

Finding the Fourth Proportional to 104,780.26, 157,104.64 and 76,327.39

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Solution

The fourth proportional to 104,780.26, 157,104.64 and 76,327.39 is: 114,443.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,780.26 : 157,104.64 = 76,327.39 : x
  2. Step 2: Convert to fraction form
    104,780.26/157,104.64 = 76,327.39/x
  3. Step 3: Cross multiply
    104,780.26x = 157,104.64 × 76,327.39
  4. Step 4: Simplify right side
    104,780.26x = 11,991,387,128.09
  5. Step 5: Solve for x
    x = 11,991,387,128.09/104,780.26
  6. Step 6: Final answer
    x = 114,443.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.