Home / 139,400.22-209,104.43-34,219.19

Finding the Fourth Proportional to 139,400.22, 209,104.43 and 34,219.19

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Solution

The fourth proportional to 139,400.22, 209,104.43 and 34,219.19 is: 51,329.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,400.22 : 209,104.43 = 34,219.19 : x
  2. Step 2: Convert to fraction form
    139,400.22/209,104.43 = 34,219.19/x
  3. Step 3: Cross multiply
    139,400.22x = 209,104.43 × 34,219.19
  4. Step 4: Simplify right side
    139,400.22x = 7,155,384,220.01
  5. Step 5: Solve for x
    x = 7,155,384,220.01/139,400.22
  6. Step 6: Final answer
    x = 51,329.79

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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.