Home / 115,408.12-173,133.24-53,077

Finding the Fourth Proportional to 115,408.12, 173,133.24 and 53,077

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Solution

The fourth proportional to 115,408.12, 173,133.24 and 53,077 is: 79,625.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,408.12 : 173,133.24 = 53,077 : x
  2. Step 2: Convert to fraction form
    115,408.12/173,133.24 = 53,077/x
  3. Step 3: Cross multiply
    115,408.12x = 173,133.24 × 53,077
  4. Step 4: Simplify right side
    115,408.12x = 9,189,392,979.48
  5. Step 5: Solve for x
    x = 9,189,392,979.48/115,408.12
  6. Step 6: Final answer
    x = 79,625.19

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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.