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Finding the Fourth Proportional to 109,305.62, 150,788.31 and 94,172.01

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Solution

The fourth proportional to 109,305.62, 150,788.31 and 94,172.01 is: 129,911.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,305.62 : 150,788.31 = 94,172.01 : x
  2. Step 2: Convert to fraction form
    109,305.62/150,788.31 = 94,172.01/x
  3. Step 3: Cross multiply
    109,305.62x = 150,788.31 × 94,172.01
  4. Step 4: Simplify right side
    109,305.62x = 14,200,037,758.95
  5. Step 5: Solve for x
    x = 14,200,037,758.95/109,305.62
  6. Step 6: Final answer
    x = 129,911.32

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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.