Home / 104,266.82-143,795.31-81,302.33

Finding the Fourth Proportional to 104,266.82, 143,795.31 and 81,302.33

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Solution

The fourth proportional to 104,266.82, 143,795.31 and 81,302.33 is: 112,124.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,266.82 : 143,795.31 = 81,302.33 : x
  2. Step 2: Convert to fraction form
    104,266.82/143,795.31 = 81,302.33/x
  3. Step 3: Cross multiply
    104,266.82x = 143,795.31 × 81,302.33
  4. Step 4: Simplify right side
    104,266.82x = 11,690,893,746.07
  5. Step 5: Solve for x
    x = 11,690,893,746.07/104,266.82
  6. Step 6: Final answer
    x = 112,124.78

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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.