Home / 150,858.35-208,161.39-87,183.86

Finding the Fourth Proportional to 150,858.35, 208,161.39 and 87,183.86

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Solution

The fourth proportional to 150,858.35, 208,161.39 and 87,183.86 is: 120,300.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,858.35 : 208,161.39 = 87,183.86 : x
  2. Step 2: Convert to fraction form
    150,858.35/208,161.39 = 87,183.86/x
  3. Step 3: Cross multiply
    150,858.35x = 208,161.39 × 87,183.86
  4. Step 4: Simplify right side
    150,858.35x = 18,148,312,442.36
  5. Step 5: Solve for x
    x = 18,148,312,442.36/150,858.35
  6. Step 6: Final answer
    x = 120,300.35

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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.