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Finding the Fourth Proportional to 147,154, 203,072.52 and 80,086.48

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Solution

The fourth proportional to 147,154, 203,072.52 and 80,086.48 is: 110,519.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,154 : 203,072.52 = 80,086.48 : x
  2. Step 2: Convert to fraction form
    147,154/203,072.52 = 80,086.48/x
  3. Step 3: Cross multiply
    147,154x = 203,072.52 × 80,086.48
  4. Step 4: Simplify right side
    147,154x = 16,263,363,311.53
  5. Step 5: Solve for x
    x = 16,263,363,311.53/147,154
  6. Step 6: Final answer
    x = 110,519.34

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1.5x scale

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.