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Finding the Fourth Proportional to 109,170.30, 163,656.45 and 39,033.30

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Solution

The fourth proportional to 109,170.30, 163,656.45 and 39,033.30 is: 58,514.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,170.30 : 163,656.45 = 39,033.30 : x
  2. Step 2: Convert to fraction form
    109,170.30/163,656.45 = 39,033.30/x
  3. Step 3: Cross multiply
    109,170.30x = 163,656.45 × 39,033.30
  4. Step 4: Simplify right side
    109,170.30x = 6,388,051,309.79
  5. Step 5: Solve for x
    x = 6,388,051,309.79/109,170.30
  6. Step 6: Final answer
    x = 58,514.55

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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.