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Finding the Fourth Proportional to 139,477.04, 209,149.68 and 50,668.64

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Solution

The fourth proportional to 139,477.04, 209,149.68 and 50,668.64 is: 75,979.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,477.04 : 209,149.68 = 50,668.64 : x
  2. Step 2: Convert to fraction form
    139,477.04/209,149.68 = 50,668.64/x
  3. Step 3: Cross multiply
    139,477.04x = 209,149.68 × 50,668.64
  4. Step 4: Simplify right side
    139,477.04x = 10,597,329,842.04
  5. Step 5: Solve for x
    x = 10,597,329,842.04/139,477.04
  6. Step 6: Final answer
    x = 75,979.03

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1.5x scale

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.