Home / 104,311.39-143,949.79-56,564.73

Finding the Fourth Proportional to 104,311.39, 143,949.79 and 56,564.73

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Solution

The fourth proportional to 104,311.39, 143,949.79 and 56,564.73 is: 78,059.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,311.39 : 143,949.79 = 56,564.73 : x
  2. Step 2: Convert to fraction form
    104,311.39/143,949.79 = 56,564.73/x
  3. Step 3: Cross multiply
    104,311.39x = 143,949.79 × 56,564.73
  4. Step 4: Simplify right side
    104,311.39x = 8,142,481,004.91
  5. Step 5: Solve for x
    x = 8,142,481,004.91/104,311.39
  6. Step 6: Final answer
    x = 78,059.37

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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.