Home / 136,401.21-188,239.51-75,971.87

Finding the Fourth Proportional to 136,401.21, 188,239.51 and 75,971.87

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Solution

The fourth proportional to 136,401.21, 188,239.51 and 75,971.87 is: 104,844.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,401.21 : 188,239.51 = 75,971.87 : x
  2. Step 2: Convert to fraction form
    136,401.21/188,239.51 = 75,971.87/x
  3. Step 3: Cross multiply
    136,401.21x = 188,239.51 × 75,971.87
  4. Step 4: Simplify right side
    136,401.21x = 14,300,907,442.25
  5. Step 5: Solve for x
    x = 14,300,907,442.25/136,401.21
  6. Step 6: Final answer
    x = 104,844.43

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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.