Home / 136,664.34-188,515.59-106,401.72

Finding the Fourth Proportional to 136,664.34, 188,515.59 and 106,401.72

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Solution

The fourth proportional to 136,664.34, 188,515.59 and 106,401.72 is: 146,771.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,664.34 : 188,515.59 = 106,401.72 : x
  2. Step 2: Convert to fraction form
    136,664.34/188,515.59 = 106,401.72/x
  3. Step 3: Cross multiply
    136,664.34x = 188,515.59 × 106,401.72
  4. Step 4: Simplify right side
    136,664.34x = 20,058,383,729.75
  5. Step 5: Solve for x
    x = 20,058,383,729.75/136,664.34
  6. Step 6: Final answer
    x = 146,771.16

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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.