Home / 136,735.86-188,704.97-76,318.28

Finding the Fourth Proportional to 136,735.86, 188,704.97 and 76,318.28

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Solution

The fourth proportional to 136,735.86, 188,704.97 and 76,318.28 is: 105,324.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,735.86 : 188,704.97 = 76,318.28 : x
  2. Step 2: Convert to fraction form
    136,735.86/188,704.97 = 76,318.28/x
  3. Step 3: Cross multiply
    136,735.86x = 188,704.97 × 76,318.28
  4. Step 4: Simplify right side
    136,735.86x = 14,401,638,828.02
  5. Step 5: Solve for x
    x = 14,401,638,828.02/136,735.86
  6. Step 6: Final answer
    x = 105,324.52

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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.