Home / 139,964.48-209,940.32-45,199.04

Finding the Fourth Proportional to 139,964.48, 209,940.32 and 45,199.04

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Solution

The fourth proportional to 139,964.48, 209,940.32 and 45,199.04 is: 67,796.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,964.48 : 209,940.32 = 45,199.04 : x
  2. Step 2: Convert to fraction form
    139,964.48/209,940.32 = 45,199.04/x
  3. Step 3: Cross multiply
    139,964.48x = 209,940.32 × 45,199.04
  4. Step 4: Simplify right side
    139,964.48x = 9,489,100,921.29
  5. Step 5: Solve for x
    x = 9,489,100,921.29/139,964.48
  6. Step 6: Final answer
    x = 67,796.49

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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.