Finding the Fourth Proportional to 151,661.99, 209,292.92 and 83,683.19
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Solution
The fourth proportional to 151,661.99, 209,292.92 and 83,683.19 is: 115,482.45
Step by Step Solution
- Step 1: Write the proportion equation
151,661.99 : 209,292.92 = 83,683.19 : x - Step 2: Convert to fraction form
151,661.99/209,292.92 = 83,683.19/x - Step 3: Cross multiply
151,661.99x = 209,292.92 × 83,683.19 - Step 4: Simplify right side
151,661.99x = 17,514,297,725.13 - Step 5: Solve for x
x = 17,514,297,725.13/151,661.99 - Step 6: Final answer
x = 115,482.45
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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.