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Finding the Fourth Proportional to 147,799, 203,967.66 and 80,735.32

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Solution

The fourth proportional to 147,799, 203,967.66 and 80,735.32 is: 111,417.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,799 : 203,967.66 = 80,735.32 : x
  2. Step 2: Convert to fraction form
    147,799/203,967.66 = 80,735.32/x
  3. Step 3: Cross multiply
    147,799x = 203,967.66 × 80,735.32
  4. Step 4: Simplify right side
    147,799x = 16,467,394,299.75
  5. Step 5: Solve for x
    x = 16,467,394,299.75/147,799
  6. Step 6: Final answer
    x = 111,417.49

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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.