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Finding the Fourth Proportional to 108,782.16, 150,156.84 and 68,563.68

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Solution

The fourth proportional to 108,782.16, 150,156.84 and 68,563.68 is: 94,641.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,782.16 : 150,156.84 = 68,563.68 : x
  2. Step 2: Convert to fraction form
    108,782.16/150,156.84 = 68,563.68/x
  3. Step 3: Cross multiply
    108,782.16x = 150,156.84 × 68,563.68
  4. Step 4: Simplify right side
    108,782.16x = 10,295,305,527.57
  5. Step 5: Solve for x
    x = 10,295,305,527.57/108,782.16
  6. Step 6: Final answer
    x = 94,641.49

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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.