Home / 139,921.98-209,821.21-40,059.51

Finding the Fourth Proportional to 139,921.98, 209,821.21 and 40,059.51

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Solution

The fourth proportional to 139,921.98, 209,821.21 and 40,059.51 is: 60,071.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,921.98 : 209,821.21 = 40,059.51 : x
  2. Step 2: Convert to fraction form
    139,921.98/209,821.21 = 40,059.51/x
  3. Step 3: Cross multiply
    139,921.98x = 209,821.21 × 40,059.51
  4. Step 4: Simplify right side
    139,921.98x = 8,405,334,860.21
  5. Step 5: Solve for x
    x = 8,405,334,860.21/139,921.98
  6. Step 6: Final answer
    x = 60,071.58

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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.