Home / 168,783.35-253,299.62-80,037.15

Finding the Fourth Proportional to 168,783.35, 253,299.62 and 80,037.15

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Solution

The fourth proportional to 168,783.35, 253,299.62 and 80,037.15 is: 120,114.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,783.35 : 253,299.62 = 80,037.15 : x
  2. Step 2: Convert to fraction form
    168,783.35/253,299.62 = 80,037.15/x
  3. Step 3: Cross multiply
    168,783.35x = 253,299.62 × 80,037.15
  4. Step 4: Simplify right side
    168,783.35x = 20,273,378,931.10
  5. Step 5: Solve for x
    x = 20,273,378,931.10/168,783.35
  6. Step 6: Final answer
    x = 120,114.81

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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.