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Finding the Fourth Proportional to 100,118.19, 150,219.18 and 43,929.30

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Solution

The fourth proportional to 100,118.19, 150,219.18 and 43,929.30 is: 65,912.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,118.19 : 150,219.18 = 43,929.30 : x
  2. Step 2: Convert to fraction form
    100,118.19/150,219.18 = 43,929.30/x
  3. Step 3: Cross multiply
    100,118.19x = 150,219.18 × 43,929.30
  4. Step 4: Simplify right side
    100,118.19x = 6,599,023,423.97
  5. Step 5: Solve for x
    x = 6,599,023,423.97/100,118.19
  6. Step 6: Final answer
    x = 65,912.33

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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.