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Finding the Fourth Proportional to 123,679.84, 185,530.12 and 39,452.08

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Solution

The fourth proportional to 123,679.84, 185,530.12 and 39,452.08 is: 59,181.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,679.84 : 185,530.12 = 39,452.08 : x
  2. Step 2: Convert to fraction form
    123,679.84/185,530.12 = 39,452.08/x
  3. Step 3: Cross multiply
    123,679.84x = 185,530.12 × 39,452.08
  4. Step 4: Simplify right side
    123,679.84x = 7,319,549,136.65
  5. Step 5: Solve for x
    x = 7,319,549,136.65/123,679.84
  6. Step 6: Final answer
    x = 59,181.42

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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.