Finding the Fourth Proportional to 117,317.08, 161,921.10 and 69,596.92
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Solution
The fourth proportional to 117,317.08, 161,921.10 and 69,596.92 is: 96,057.71
Step by Step Solution
- Step 1: Write the proportion equation
117,317.08 : 161,921.10 = 69,596.92 : x - Step 2: Convert to fraction form
117,317.08/161,921.10 = 69,596.92/x - Step 3: Cross multiply
117,317.08x = 161,921.10 × 69,596.92 - Step 4: Simplify right side
117,317.08x = 11,269,209,843.01 - Step 5: Solve for x
x = 11,269,209,843.01/117,317.08 - Step 6: Final answer
x = 96,057.71
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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.