Finding the Fourth Proportional to 112,703.09, 155,530.28 and 62,402.09
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Solution
The fourth proportional to 112,703.09, 155,530.28 and 62,402.09 is: 86,114.89
Step by Step Solution
- Step 1: Write the proportion equation
112,703.09 : 155,530.28 = 62,402.09 : x - Step 2: Convert to fraction form
112,703.09/155,530.28 = 62,402.09/x - Step 3: Cross multiply
112,703.09x = 155,530.28 × 62,402.09 - Step 4: Simplify right side
112,703.09x = 9,705,414,218.27 - Step 5: Solve for x
x = 9,705,414,218.27/112,703.09 - Step 6: Final answer
x = 86,114.89
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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.