Home / 424,723.88-637,085.78-109,181.08

Finding the Fourth Proportional to 424,723.88, 637,085.78 and 109,181.08

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Solution

The fourth proportional to 424,723.88, 637,085.78 and 109,181.08 is: 163,771.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,723.88 : 637,085.78 = 109,181.08 : x
  2. Step 2: Convert to fraction form
    424,723.88/637,085.78 = 109,181.08/x
  3. Step 3: Cross multiply
    424,723.88x = 637,085.78 × 109,181.08
  4. Step 4: Simplify right side
    424,723.88x = 69,557,713,513.04
  5. Step 5: Solve for x
    x = 69,557,713,513.04/424,723.88
  6. Step 6: Final answer
    x = 163,771.61

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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.