Home / 104,170.14-143,729.91-61,721.34

Finding the Fourth Proportional to 104,170.14, 143,729.91 and 61,721.34

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Solution

The fourth proportional to 104,170.14, 143,729.91 and 61,721.34 is: 85,160.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,170.14 : 143,729.91 = 61,721.34 : x
  2. Step 2: Convert to fraction form
    104,170.14/143,729.91 = 61,721.34/x
  3. Step 3: Cross multiply
    104,170.14x = 143,729.91 × 61,721.34
  4. Step 4: Simplify right side
    104,170.14x = 8,871,202,643.28
  5. Step 5: Solve for x
    x = 8,871,202,643.28/104,170.14
  6. Step 6: Final answer
    x = 85,160.71

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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.