Home / 113,241.16-169,725.66-79,911.28

Finding the Fourth Proportional to 113,241.16, 169,725.66 and 79,911.28

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Solution

The fourth proportional to 113,241.16, 169,725.66 and 79,911.28 is: 119,770.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,241.16 : 169,725.66 = 79,911.28 : x
  2. Step 2: Convert to fraction form
    113,241.16/169,725.66 = 79,911.28/x
  3. Step 3: Cross multiply
    113,241.16x = 169,725.66 × 79,911.28
  4. Step 4: Simplify right side
    113,241.16x = 13,562,994,739.44
  5. Step 5: Solve for x
    x = 13,562,994,739.44/113,241.16
  6. Step 6: Final answer
    x = 119,770.89

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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.