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Finding the Fourth Proportional to 147,375.60, 203,378.28 and 80,307.60

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Solution

The fourth proportional to 147,375.60, 203,378.28 and 80,307.60 is: 110,824.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,375.60 : 203,378.28 = 80,307.60 : x
  2. Step 2: Convert to fraction form
    147,375.60/203,378.28 = 80,307.60/x
  3. Step 3: Cross multiply
    147,375.60x = 203,378.28 × 80,307.60
  4. Step 4: Simplify right side
    147,375.60x = 16,332,821,558.93
  5. Step 5: Solve for x
    x = 16,332,821,558.93/147,375.60
  6. Step 6: Final answer
    x = 110,824.46

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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.