Finding the Fourth Proportional to 155,991.96, 215,268.93 and 84,371.99
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Solution
The fourth proportional to 155,991.96, 215,268.93 and 84,371.99 is: 116,433.36
Step by Step Solution
- Step 1: Write the proportion equation
155,991.96 : 215,268.93 = 84,371.99 : x - Step 2: Convert to fraction form
155,991.96/215,268.93 = 84,371.99/x - Step 3: Cross multiply
155,991.96x = 215,268.93 × 84,371.99 - Step 4: Simplify right side
155,991.96x = 18,162,668,009.27 - Step 5: Solve for x
x = 18,162,668,009.27/155,991.96 - Step 6: Final answer
x = 116,433.36
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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.