Home / 113,093.28-169,590.11-53,138.81

Finding the Fourth Proportional to 113,093.28, 169,590.11 and 53,138.81

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Solution

The fourth proportional to 113,093.28, 169,590.11 and 53,138.81 is: 79,684.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,093.28 : 169,590.11 = 53,138.81 : x
  2. Step 2: Convert to fraction form
    113,093.28/169,590.11 = 53,138.81/x
  3. Step 3: Cross multiply
    113,093.28x = 169,590.11 × 53,138.81
  4. Step 4: Simplify right side
    113,093.28x = 9,011,816,791.45
  5. Step 5: Solve for x
    x = 9,011,816,791.45/113,093.28
  6. Step 6: Final answer
    x = 79,684.81

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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.