Home / 136,846.89-188,845.02-76,415.85

Finding the Fourth Proportional to 136,846.89, 188,845.02 and 76,415.85

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Solution

The fourth proportional to 136,846.89, 188,845.02 and 76,415.85 is: 105,451.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,846.89 : 188,845.02 = 76,415.85 : x
  2. Step 2: Convert to fraction form
    136,846.89/188,845.02 = 76,415.85/x
  3. Step 3: Cross multiply
    136,846.89x = 188,845.02 × 76,415.85
  4. Step 4: Simplify right side
    136,846.89x = 14,430,752,721.57
  5. Step 5: Solve for x
    x = 14,430,752,721.57/136,846.89
  6. Step 6: Final answer
    x = 105,451.81

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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.