Home / 136,648.56-188,576.64-76,224.45

Finding the Fourth Proportional to 136,648.56, 188,576.64 and 76,224.45

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Solution

The fourth proportional to 136,648.56, 188,576.64 and 76,224.45 is: 105,190.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,648.56 : 188,576.64 = 76,224.45 : x
  2. Step 2: Convert to fraction form
    136,648.56/188,576.64 = 76,224.45/x
  3. Step 3: Cross multiply
    136,648.56x = 188,576.64 × 76,224.45
  4. Step 4: Simplify right side
    136,648.56x = 14,374,150,666.85
  5. Step 5: Solve for x
    x = 14,374,150,666.85/136,648.56
  6. Step 6: Final answer
    x = 105,190.65

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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.