Home / 104,127.14-143,679.21-61,678.82

Finding the Fourth Proportional to 104,127.14, 143,679.21 and 61,678.82

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Solution

The fourth proportional to 104,127.14, 143,679.21 and 61,678.82 is: 85,107.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,127.14 : 143,679.21 = 61,678.82 : x
  2. Step 2: Convert to fraction form
    104,127.14/143,679.21 = 61,678.82/x
  3. Step 3: Cross multiply
    104,127.14x = 143,679.21 × 61,678.82
  4. Step 4: Simplify right side
    104,127.14x = 8,861,964,131.33
  5. Step 5: Solve for x
    x = 8,861,964,131.33/104,127.14
  6. Step 6: Final answer
    x = 85,107.15

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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.