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Finding the Fourth Proportional to 108,859.30, 163,295.03 and 33,989.78

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Solution

The fourth proportional to 108,859.30, 163,295.03 and 33,989.78 is: 50,986.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,859.30 : 163,295.03 = 33,989.78 : x
  2. Step 2: Convert to fraction form
    108,859.30/163,295.03 = 33,989.78/x
  3. Step 3: Cross multiply
    108,859.30x = 163,295.03 × 33,989.78
  4. Step 4: Simplify right side
    108,859.30x = 5,550,362,144.79
  5. Step 5: Solve for x
    x = 5,550,362,144.79/108,859.30
  6. Step 6: Final answer
    x = 50,986.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.