Finding the Fourth Proportional to 122,954.81, 169,672.73 and 69,242.09
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Solution
The fourth proportional to 122,954.81, 169,672.73 and 69,242.09 is: 95,551.31
Step by Step Solution
- Step 1: Write the proportion equation
122,954.81 : 169,672.73 = 69,242.09 : x - Step 2: Convert to fraction form
122,954.81/169,672.73 = 69,242.09/x - Step 3: Cross multiply
122,954.81x = 169,672.73 × 69,242.09 - Step 4: Simplify right side
122,954.81x = 11,748,493,246.63 - Step 5: Solve for x
x = 11,748,493,246.63/122,954.81 - Step 6: Final answer
x = 95,551.31
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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.