Finding the Fourth Proportional to 122,908.23, 169,612.91 and 69,193.38
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Solution
The fourth proportional to 122,908.23, 169,612.91 and 69,193.38 is: 95,486.61
Step by Step Solution
- Step 1: Write the proportion equation
122,908.23 : 169,612.91 = 69,193.38 : x - Step 2: Convert to fraction form
122,908.23/169,612.91 = 69,193.38/x - Step 3: Cross multiply
122,908.23x = 169,612.91 × 69,193.38 - Step 4: Simplify right side
122,908.23x = 11,736,090,188.57 - Step 5: Solve for x
x = 11,736,090,188.57/122,908.23 - Step 6: Final answer
x = 95,486.61
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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.