Home / 147,733.50-203,872.77-80,665.50

Finding the Fourth Proportional to 147,733.50, 203,872.77 and 80,665.50

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Solution

The fourth proportional to 147,733.50, 203,872.77 and 80,665.50 is: 111,318.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,733.50 : 203,872.77 = 80,665.50 : x
  2. Step 2: Convert to fraction form
    147,733.50/203,872.77 = 80,665.50/x
  3. Step 3: Cross multiply
    147,733.50x = 203,872.77 × 80,665.50
  4. Step 4: Simplify right side
    147,733.50x = 16,445,498,928.44
  5. Step 5: Solve for x
    x = 16,445,498,928.44/147,733.50
  6. Step 6: Final answer
    x = 111,318.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.