Home / 211,813.25-317,851.19-123,108.53

Finding the Fourth Proportional to 211,813.25, 317,851.19 and 123,108.53

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Solution

The fourth proportional to 211,813.25, 317,851.19 and 123,108.53 is: 184,739.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,813.25 : 317,851.19 = 123,108.53 : x
  2. Step 2: Convert to fraction form
    211,813.25/317,851.19 = 123,108.53/x
  3. Step 3: Cross multiply
    211,813.25x = 317,851.19 × 123,108.53
  4. Step 4: Simplify right side
    211,813.25x = 39,130,192,759.65
  5. Step 5: Solve for x
    x = 39,130,192,759.65/211,813.25
  6. Step 6: Final answer
    x = 184,739.12

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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.