Home / 203,741.10-305,611.83-70,621.47

Finding the Fourth Proportional to 203,741.10, 305,611.83 and 70,621.47

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Solution

The fourth proportional to 203,741.10, 305,611.83 and 70,621.47 is: 105,932.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,741.10 : 305,611.83 = 70,621.47 : x
  2. Step 2: Convert to fraction form
    203,741.10/305,611.83 = 70,621.47/x
  3. Step 3: Cross multiply
    203,741.10x = 305,611.83 × 70,621.47
  4. Step 4: Simplify right side
    203,741.10x = 21,582,756,683.99
  5. Step 5: Solve for x
    x = 21,582,756,683.99/203,741.10
  6. Step 6: Final answer
    x = 105,932.27

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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.