Finding the Fourth Proportional to 151,670.36, 209,301.62 and 83,693.75
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Solution
The fourth proportional to 151,670.36, 209,301.62 and 83,693.75 is: 115,495.45
Step by Step Solution
- Step 1: Write the proportion equation
151,670.36 : 209,301.62 = 83,693.75 : x - Step 2: Convert to fraction form
151,670.36/209,301.62 = 83,693.75/x - Step 3: Cross multiply
151,670.36x = 209,301.62 × 83,693.75 - Step 4: Simplify right side
151,670.36x = 17,517,235,993.90 - Step 5: Solve for x
x = 17,517,235,993.90/151,670.36 - Step 6: Final answer
x = 115,495.45
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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.