Finding the Fourth Proportional to 151,707.13, 209,355.93 and 84,639.13
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Solution
The fourth proportional to 151,707.13, 209,355.93 and 84,639.13 is: 116,802.05
Step by Step Solution
- Step 1: Write the proportion equation
151,707.13 : 209,355.93 = 84,639.13 : x - Step 2: Convert to fraction form
151,707.13/209,355.93 = 84,639.13/x - Step 3: Cross multiply
151,707.13x = 209,355.93 × 84,639.13 - Step 4: Simplify right side
151,707.13x = 17,719,703,775.54 - Step 5: Solve for x
x = 17,719,703,775.54/151,707.13 - Step 6: Final answer
x = 116,802.05
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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.