Finding the Fourth Proportional to 128,829.01, 193,046.44 and 68,866.02
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Solution
The fourth proportional to 128,829.01, 193,046.44 and 68,866.02 is: 103,193.68
Step by Step Solution
- Step 1: Write the proportion equation
128,829.01 : 193,046.44 = 68,866.02 : x - Step 2: Convert to fraction form
128,829.01/193,046.44 = 68,866.02/x - Step 3: Cross multiply
128,829.01x = 193,046.44 × 68,866.02 - Step 4: Simplify right side
128,829.01x = 13,294,339,997.97 - Step 5: Solve for x
x = 13,294,339,997.97/128,829.01 - Step 6: Final answer
x = 103,193.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.