Home / 136,982.88-188,984.28-101,258.64

Finding the Fourth Proportional to 136,982.88, 188,984.28 and 101,258.64

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Solution

The fourth proportional to 136,982.88, 188,984.28 and 101,258.64 is: 139,698.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,982.88 : 188,984.28 = 101,258.64 : x
  2. Step 2: Convert to fraction form
    136,982.88/188,984.28 = 101,258.64/x
  3. Step 3: Cross multiply
    136,982.88x = 188,984.28 × 101,258.64
  4. Step 4: Simplify right side
    136,982.88x = 19,136,291,174.18
  5. Step 5: Solve for x
    x = 19,136,291,174.18/136,982.88
  6. Step 6: Final answer
    x = 139,698.41

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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.