Finding the Fourth Proportional to 122,888.64, 169,586.70 and 69,174.48
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Solution
The fourth proportional to 122,888.64, 169,586.70 and 69,174.48 is: 95,460.99
Step by Step Solution
- Step 1: Write the proportion equation
122,888.64 : 169,586.70 = 69,174.48 : x - Step 2: Convert to fraction form
122,888.64/169,586.70 = 69,174.48/x - Step 3: Cross multiply
122,888.64x = 169,586.70 × 69,174.48 - Step 4: Simplify right side
122,888.64x = 11,731,071,787.42 - Step 5: Solve for x
x = 11,731,071,787.42/122,888.64 - Step 6: Final answer
x = 95,460.99
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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.