Finding the Fourth Proportional to 122,019.96, 167,879.34 and 107,617.08
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Solution
The fourth proportional to 122,019.96, 167,879.34 and 107,617.08 is: 148,063.35
Step by Step Solution
- Step 1: Write the proportion equation
122,019.96 : 167,879.34 = 107,617.08 : x - Step 2: Convert to fraction form
122,019.96/167,879.34 = 107,617.08/x - Step 3: Cross multiply
122,019.96x = 167,879.34 × 107,617.08 - Step 4: Simplify right side
122,019.96x = 18,066,684,363.13 - Step 5: Solve for x
x = 18,066,684,363.13/122,019.96 - Step 6: Final answer
x = 148,063.35
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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.