Finding the Fourth Proportional to 112,832.75, 155,709.20 and 62,534.99
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Solution
The fourth proportional to 112,832.75, 155,709.20 and 62,534.99 is: 86,298.29
Step by Step Solution
- Step 1: Write the proportion equation
112,832.75 : 155,709.20 = 62,534.99 : x - Step 2: Convert to fraction form
112,832.75/155,709.20 = 62,534.99/x - Step 3: Cross multiply
112,832.75x = 155,709.20 × 62,534.99 - Step 4: Simplify right side
112,832.75x = 9,737,272,952.23 - Step 5: Solve for x
x = 9,737,272,952.23/112,832.75 - Step 6: Final answer
x = 86,298.29
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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.