Finding the Fourth Proportional to 151,908.50, 209,651.54 and 91,509.63
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Solution
The fourth proportional to 151,908.50, 209,651.54 and 91,509.63 is: 126,294.02
Step by Step Solution
- Step 1: Write the proportion equation
151,908.50 : 209,651.54 = 91,509.63 : x - Step 2: Convert to fraction form
151,908.50/209,651.54 = 91,509.63/x - Step 3: Cross multiply
151,908.50x = 209,651.54 × 91,509.63 - Step 4: Simplify right side
151,908.50x = 19,185,134,396.78 - Step 5: Solve for x
x = 19,185,134,396.78/151,908.50 - Step 6: Final answer
x = 126,294.02
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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.