Home / 211,834.56-317,883.12-123,129.84

Finding the Fourth Proportional to 211,834.56, 317,883.12 and 123,129.84

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Solution

The fourth proportional to 211,834.56, 317,883.12 and 123,129.84 is: 184,771.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,834.56 : 317,883.12 = 123,129.84 : x
  2. Step 2: Convert to fraction form
    211,834.56/317,883.12 = 123,129.84/x
  3. Step 3: Cross multiply
    211,834.56x = 317,883.12 × 123,129.84
  4. Step 4: Simplify right side
    211,834.56x = 39,140,897,704.30
  5. Step 5: Solve for x
    x = 39,140,897,704.30/211,834.56
  6. Step 6: Final answer
    x = 184,771.07

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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.