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Finding the Fourth Proportional to 109,224.64, 150,758.49 and 66,818.71

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Solution

The fourth proportional to 109,224.64, 150,758.49 and 66,818.71 is: 92,227.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,224.64 : 150,758.49 = 66,818.71 : x
  2. Step 2: Convert to fraction form
    109,224.64/150,758.49 = 66,818.71/x
  3. Step 3: Cross multiply
    109,224.64x = 150,758.49 × 66,818.71
  4. Step 4: Simplify right side
    109,224.64x = 10,073,487,823.35
  5. Step 5: Solve for x
    x = 10,073,487,823.35/109,224.64
  6. Step 6: Final answer
    x = 92,227.25

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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.