Home / 139,964.78-209,883.98-40,102.11

Finding the Fourth Proportional to 139,964.78, 209,883.98 and 40,102.11

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Solution

The fourth proportional to 139,964.78, 209,883.98 and 40,102.11 is: 60,135.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,964.78 : 209,883.98 = 40,102.11 : x
  2. Step 2: Convert to fraction form
    139,964.78/209,883.98 = 40,102.11/x
  3. Step 3: Cross multiply
    139,964.78x = 209,883.98 × 40,102.11
  4. Step 4: Simplify right side
    139,964.78x = 8,416,790,252.69
  5. Step 5: Solve for x
    x = 8,416,790,252.69/139,964.78
  6. Step 6: Final answer
    x = 60,135.06

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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.