Home / 136,670.28-188,606.46-76,240.44

Finding the Fourth Proportional to 136,670.28, 188,606.46 and 76,240.44

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Solution

The fourth proportional to 136,670.28, 188,606.46 and 76,240.44 is: 105,212.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,670.28 : 188,606.46 = 76,240.44 : x
  2. Step 2: Convert to fraction form
    136,670.28/188,606.46 = 76,240.44/x
  3. Step 3: Cross multiply
    136,670.28x = 188,606.46 × 76,240.44
  4. Step 4: Simplify right side
    136,670.28x = 14,379,439,497.24
  5. Step 5: Solve for x
    x = 14,379,439,497.24/136,670.28
  6. Step 6: Final answer
    x = 105,212.63

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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.