Home / 143,039.52-197,403.48-82,621.22

Finding the Fourth Proportional to 143,039.52, 197,403.48 and 82,621.22

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Solution

The fourth proportional to 143,039.52, 197,403.48 and 82,621.22 is: 114,022.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,039.52 : 197,403.48 = 82,621.22 : x
  2. Step 2: Convert to fraction form
    143,039.52/197,403.48 = 82,621.22/x
  3. Step 3: Cross multiply
    143,039.52x = 197,403.48 × 82,621.22
  4. Step 4: Simplify right side
    143,039.52x = 16,309,715,362.83
  5. Step 5: Solve for x
    x = 16,309,715,362.83/143,039.52
  6. Step 6: Final answer
    x = 114,022.44

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1.5x scale

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.