Home / 211,834.52-317,883.08-123,129.80

Finding the Fourth Proportional to 211,834.52, 317,883.08 and 123,129.80

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Solution

The fourth proportional to 211,834.52, 317,883.08 and 123,129.80 is: 184,771.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,834.52 : 317,883.08 = 123,129.80 : x
  2. Step 2: Convert to fraction form
    211,834.52/317,883.08 = 123,129.80/x
  3. Step 3: Cross multiply
    211,834.52x = 317,883.08 × 123,129.80
  4. Step 4: Simplify right side
    211,834.52x = 39,140,880,063.78
  5. Step 5: Solve for x
    x = 39,140,880,063.78/211,834.52
  6. Step 6: Final answer
    x = 184,771.02

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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.