Home / 104,164.82-143,738.79-61,139.66

Finding the Fourth Proportional to 104,164.82, 143,738.79 and 61,139.66

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Solution

The fourth proportional to 104,164.82, 143,738.79 and 61,139.66 is: 84,367.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,164.82 : 143,738.79 = 61,139.66 : x
  2. Step 2: Convert to fraction form
    104,164.82/143,738.79 = 61,139.66/x
  3. Step 3: Cross multiply
    104,164.82x = 143,738.79 × 61,139.66
  4. Step 4: Simplify right side
    104,164.82x = 8,788,140,749.41
  5. Step 5: Solve for x
    x = 8,788,140,749.41/104,164.82
  6. Step 6: Final answer
    x = 84,367.65

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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.