Finding the Fourth Proportional to 75,218.04, 103,582.14 and 70,409.97
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Solution
The fourth proportional to 75,218.04, 103,582.14 and 70,409.97 is: 96,960.99
Step by Step Solution
- Step 1: Write the proportion equation
75,218.04 : 103,582.14 = 70,409.97 : x - Step 2: Convert to fraction form
75,218.04/103,582.14 = 70,409.97/x - Step 3: Cross multiply
75,218.04x = 103,582.14 × 70,409.97 - Step 4: Simplify right side
75,218.04x = 7,293,215,369.94 - Step 5: Solve for x
x = 7,293,215,369.94/75,218.04 - Step 6: Final answer
x = 96,960.99
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1.5x scale
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.