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Finding the Fourth Proportional to 109,104.33, 150,532.92 and 65,479.16

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Solution

The fourth proportional to 109,104.33, 150,532.92 and 65,479.16 is: 90,342.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,104.33 : 150,532.92 = 65,479.16 : x
  2. Step 2: Convert to fraction form
    109,104.33/150,532.92 = 65,479.16/x
  3. Step 3: Cross multiply
    109,104.33x = 150,532.92 × 65,479.16
  4. Step 4: Simplify right side
    109,104.33x = 9,856,768,401.28
  5. Step 5: Solve for x
    x = 9,856,768,401.28/109,104.33
  6. Step 6: Final answer
    x = 90,342.60

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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.