Finding the Fourth Proportional to 117,289.23, 161,855.19 and 69,514.21
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Solution
The fourth proportional to 117,289.23, 161,855.19 and 69,514.21 is: 95,927.28
Step by Step Solution
- Step 1: Write the proportion equation
117,289.23 : 161,855.19 = 69,514.21 : x - Step 2: Convert to fraction form
117,289.23/161,855.19 = 69,514.21/x - Step 3: Cross multiply
117,289.23x = 161,855.19 × 69,514.21 - Step 4: Simplify right side
117,289.23x = 11,251,235,869.57 - Step 5: Solve for x
x = 11,251,235,869.57/117,289.23 - Step 6: Final answer
x = 95,927.28
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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.