Home / 139,012.62-208,519.74-39,173.64

Finding the Fourth Proportional to 139,012.62, 208,519.74 and 39,173.64

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Solution

The fourth proportional to 139,012.62, 208,519.74 and 39,173.64 is: 58,760.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,012.62 : 208,519.74 = 39,173.64 : x
  2. Step 2: Convert to fraction form
    139,012.62/208,519.74 = 39,173.64/x
  3. Step 3: Cross multiply
    139,012.62x = 208,519.74 × 39,173.64
  4. Step 4: Simplify right side
    139,012.62x = 8,168,477,227.65
  5. Step 5: Solve for x
    x = 8,168,477,227.65/139,012.62
  6. Step 6: Final answer
    x = 58,760.69

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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.