Home / 211,911.77-317,922.94-123,079.88

Finding the Fourth Proportional to 211,911.77, 317,922.94 and 123,079.88

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Solution

The fourth proportional to 211,911.77, 317,922.94 and 123,079.88 is: 184,651.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,911.77 : 317,922.94 = 123,079.88 : x
  2. Step 2: Convert to fraction form
    211,911.77/317,922.94 = 123,079.88/x
  3. Step 3: Cross multiply
    211,911.77x = 317,922.94 × 123,079.88
  4. Step 4: Simplify right side
    211,911.77x = 39,129,918,253.10
  5. Step 5: Solve for x
    x = 39,129,918,253.10/211,911.77
  6. Step 6: Final answer
    x = 184,651.93

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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.