Home / 211,832.52-317,880.08-123,127.80

Finding the Fourth Proportional to 211,832.52, 317,880.08 and 123,127.80

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Solution

The fourth proportional to 211,832.52, 317,880.08 and 123,127.80 is: 184,768.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,832.52 : 317,880.08 = 123,127.80 : x
  2. Step 2: Convert to fraction form
    211,832.52/317,880.08 = 123,127.80/x
  3. Step 3: Cross multiply
    211,832.52x = 317,880.08 × 123,127.80
  4. Step 4: Simplify right side
    211,832.52x = 39,139,874,914.22
  5. Step 5: Solve for x
    x = 39,139,874,914.22/211,832.52
  6. Step 6: Final answer
    x = 184,768.02

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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.