Finding the Fourth Proportional to 155,424.60, 214,486.26 and 91,766.49
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Solution
The fourth proportional to 155,424.60, 214,486.26 and 91,766.49 is: 126,637.94
Step by Step Solution
- Step 1: Write the proportion equation
155,424.60 : 214,486.26 = 91,766.49 : x - Step 2: Convert to fraction form
155,424.60/214,486.26 = 91,766.49/x - Step 3: Cross multiply
155,424.60x = 214,486.26 × 91,766.49 - Step 4: Simplify right side
155,424.60x = 19,682,651,233.43 - Step 5: Solve for x
x = 19,682,651,233.43/155,424.60 - Step 6: Final answer
x = 126,637.94
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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.