Home / 112,195.94-154,830.83-61,209.81

Finding the Fourth Proportional to 112,195.94, 154,830.83 and 61,209.81

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Solution

The fourth proportional to 112,195.94, 154,830.83 and 61,209.81 is: 84,469.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,195.94 : 154,830.83 = 61,209.81 : x
  2. Step 2: Convert to fraction form
    112,195.94/154,830.83 = 61,209.81/x
  3. Step 3: Cross multiply
    112,195.94x = 154,830.83 × 61,209.81
  4. Step 4: Simplify right side
    112,195.94x = 9,477,165,380.39
  5. Step 5: Solve for x
    x = 9,477,165,380.39/112,195.94
  6. Step 6: Final answer
    x = 84,469.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.