Home / 139,905.20-209,919.77-73,329.50

Finding the Fourth Proportional to 139,905.20, 209,919.77 and 73,329.50

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Solution

The fourth proportional to 139,905.20, 209,919.77 and 73,329.50 is: 110,026.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,905.20 : 209,919.77 = 73,329.50 : x
  2. Step 2: Convert to fraction form
    139,905.20/209,919.77 = 73,329.50/x
  3. Step 3: Cross multiply
    139,905.20x = 209,919.77 × 73,329.50
  4. Step 4: Simplify right side
    139,905.20x = 15,393,312,207.35
  5. Step 5: Solve for x
    x = 15,393,312,207.35/139,905.20
  6. Step 6: Final answer
    x = 110,026.73

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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.