Home / 104,163.47-143,705.94-77,004.77

Finding the Fourth Proportional to 104,163.47, 143,705.94 and 77,004.77

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Solution

The fourth proportional to 104,163.47, 143,705.94 and 77,004.77 is: 106,237.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,163.47 : 143,705.94 = 77,004.77 : x
  2. Step 2: Convert to fraction form
    104,163.47/143,705.94 = 77,004.77/x
  3. Step 3: Cross multiply
    104,163.47x = 143,705.94 × 77,004.77
  4. Step 4: Simplify right side
    104,163.47x = 11,066,042,857.33
  5. Step 5: Solve for x
    x = 11,066,042,857.33/104,163.47
  6. Step 6: Final answer
    x = 106,237.27

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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.