Home / 139,893.23-209,778.12-40,030.70

Finding the Fourth Proportional to 139,893.23, 209,778.12 and 40,030.70

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Solution

The fourth proportional to 139,893.23, 209,778.12 and 40,030.70 is: 60,028.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,893.23 : 209,778.12 = 40,030.70 : x
  2. Step 2: Convert to fraction form
    139,893.23/209,778.12 = 40,030.70/x
  3. Step 3: Cross multiply
    139,893.23x = 209,778.12 × 40,030.70
  4. Step 4: Simplify right side
    139,893.23x = 8,397,563,939.39
  5. Step 5: Solve for x
    x = 8,397,563,939.39/139,893.23
  6. Step 6: Final answer
    x = 60,028.38

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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.