Finding the Fourth Proportional to 151,707.36, 209,354.64 and 83,724.96
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Solution
The fourth proportional to 151,707.36, 209,354.64 and 83,724.96 is: 115,539.61
Step by Step Solution
- Step 1: Write the proportion equation
151,707.36 : 209,354.64 = 83,724.96 : x - Step 2: Convert to fraction form
151,707.36/209,354.64 = 83,724.96/x - Step 3: Cross multiply
151,707.36x = 209,354.64 × 83,724.96 - Step 4: Simplify right side
151,707.36x = 17,528,208,859.81 - Step 5: Solve for x
x = 17,528,208,859.81/151,707.36 - Step 6: Final answer
x = 115,539.61
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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.