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Finding the Fourth Proportional to 163,668.12, 245,474.83 and 45,351.42

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Solution

The fourth proportional to 163,668.12, 245,474.83 and 45,351.42 is: 68,019.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,668.12 : 245,474.83 = 45,351.42 : x
  2. Step 2: Convert to fraction form
    163,668.12/245,474.83 = 45,351.42/x
  3. Step 3: Cross multiply
    163,668.12x = 245,474.83 × 45,351.42
  4. Step 4: Simplify right side
    163,668.12x = 11,132,632,114.76
  5. Step 5: Solve for x
    x = 11,132,632,114.76/163,668.12
  6. Step 6: Final answer
    x = 68,019.55

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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.