Home / 139,941.15-209,848.55-40,078.49

Finding the Fourth Proportional to 139,941.15, 209,848.55 and 40,078.49

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Solution

The fourth proportional to 139,941.15, 209,848.55 and 40,078.49 is: 60,099.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,941.15 : 209,848.55 = 40,078.49 : x
  2. Step 2: Convert to fraction form
    139,941.15/209,848.55 = 40,078.49/x
  3. Step 3: Cross multiply
    139,941.15x = 209,848.55 × 40,078.49
  4. Step 4: Simplify right side
    139,941.15x = 8,410,411,763.05
  5. Step 5: Solve for x
    x = 8,410,411,763.05/139,941.15
  6. Step 6: Final answer
    x = 60,099.63

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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.