Home / 115,964.60-173,651.57-76,401.77

Finding the Fourth Proportional to 115,964.60, 173,651.57 and 76,401.77

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Solution

The fourth proportional to 115,964.60, 173,651.57 and 76,401.77 is: 114,408.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,964.60 : 173,651.57 = 76,401.77 : x
  2. Step 2: Convert to fraction form
    115,964.60/173,651.57 = 76,401.77/x
  3. Step 3: Cross multiply
    115,964.60x = 173,651.57 × 76,401.77
  4. Step 4: Simplify right side
    115,964.60x = 13,267,286,061.01
  5. Step 5: Solve for x
    x = 13,267,286,061.01/115,964.60
  6. Step 6: Final answer
    x = 114,408.07

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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.