Home / 192,733.20-289,099.80-74,408.40

Finding the Fourth Proportional to 192,733.20, 289,099.80 and 74,408.40

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Solution

The fourth proportional to 192,733.20, 289,099.80 and 74,408.40 is: 111,612.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,733.20 : 289,099.80 = 74,408.40 : x
  2. Step 2: Convert to fraction form
    192,733.20/289,099.80 = 74,408.40/x
  3. Step 3: Cross multiply
    192,733.20x = 289,099.80 × 74,408.40
  4. Step 4: Simplify right side
    192,733.20x = 21,511,453,558.32
  5. Step 5: Solve for x
    x = 21,511,453,558.32/192,733.20
  6. Step 6: Final answer
    x = 111,612.60

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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.