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Finding the Fourth Proportional to 109,384.78, 150,893.36 and 75,334.27

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Solution

The fourth proportional to 109,384.78, 150,893.36 and 75,334.27 is: 103,921.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,384.78 : 150,893.36 = 75,334.27 : x
  2. Step 2: Convert to fraction form
    109,384.78/150,893.36 = 75,334.27/x
  3. Step 3: Cross multiply
    109,384.78x = 150,893.36 × 75,334.27
  4. Step 4: Simplify right side
    109,384.78x = 11,367,440,652.05
  5. Step 5: Solve for x
    x = 11,367,440,652.05/109,384.78
  6. Step 6: Final answer
    x = 103,921.60

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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.