Home / 209,303.55-313,861.37-67,122.63

Finding the Fourth Proportional to 209,303.55, 313,861.37 and 67,122.63

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Solution

The fourth proportional to 209,303.55, 313,861.37 and 67,122.63 is: 100,653.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,303.55 : 313,861.37 = 67,122.63 : x
  2. Step 2: Convert to fraction form
    209,303.55/313,861.37 = 67,122.63/x
  3. Step 3: Cross multiply
    209,303.55x = 313,861.37 × 67,122.63
  4. Step 4: Simplify right side
    209,303.55x = 21,067,200,274.19
  5. Step 5: Solve for x
    x = 21,067,200,274.19/209,303.55
  6. Step 6: Final answer
    x = 100,653.81

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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.