Home / 300,140.15-450,043.98-122,771.69

Finding the Fourth Proportional to 300,140.15, 450,043.98 and 122,771.69

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Solution

The fourth proportional to 300,140.15, 450,043.98 and 122,771.69 is: 184,089.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,140.15 : 450,043.98 = 122,771.69 : x
  2. Step 2: Convert to fraction form
    300,140.15/450,043.98 = 122,771.69/x
  3. Step 3: Cross multiply
    300,140.15x = 450,043.98 × 122,771.69
  4. Step 4: Simplify right side
    300,140.15x = 55,252,659,998.93
  5. Step 5: Solve for x
    x = 55,252,659,998.93/300,140.15
  6. Step 6: Final answer
    x = 184,089.53

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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.