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Finding the Fourth Proportional to 100,479.92, 150,719.88 and 38,194.16

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Solution

The fourth proportional to 100,479.92, 150,719.88 and 38,194.16 is: 57,291.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,479.92 : 150,719.88 = 38,194.16 : x
  2. Step 2: Convert to fraction form
    100,479.92/150,719.88 = 38,194.16/x
  3. Step 3: Cross multiply
    100,479.92x = 150,719.88 × 38,194.16
  4. Step 4: Simplify right side
    100,479.92x = 5,756,619,211.90
  5. Step 5: Solve for x
    x = 5,756,619,211.90/100,479.92
  6. Step 6: Final answer
    x = 57,291.24

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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.