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Finding the Fourth Proportional to 147,172.32, 203,098.32 and 80,104.32

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Solution

The fourth proportional to 147,172.32, 203,098.32 and 80,104.32 is: 110,544.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,172.32 : 203,098.32 = 80,104.32 : x
  2. Step 2: Convert to fraction form
    147,172.32/203,098.32 = 80,104.32/x
  3. Step 3: Cross multiply
    147,172.32x = 203,098.32 × 80,104.32
  4. Step 4: Simplify right side
    147,172.32x = 16,269,052,816.74
  5. Step 5: Solve for x
    x = 16,269,052,816.74/147,172.32
  6. Step 6: Final answer
    x = 110,544.24

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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.