Finding the Fourth Proportional to 100,395.09, 149,772.47 and 93,236.31
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Solution
The fourth proportional to 100,395.09, 149,772.47 and 93,236.31 is: 139,092.79
Step by Step Solution
- Step 1: Write the proportion equation
100,395.09 : 149,772.47 = 93,236.31 : x - Step 2: Convert to fraction form
100,395.09/149,772.47 = 93,236.31/x - Step 3: Cross multiply
100,395.09x = 149,772.47 × 93,236.31 - Step 4: Simplify right side
100,395.09x = 13,964,232,675.48 - Step 5: Solve for x
x = 13,964,232,675.48/100,395.09 - Step 6: Final answer
x = 139,092.79
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.