Finding the Fourth Proportional to 122,998.60, 169,725.54 and 69,275.08
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Solution
The fourth proportional to 122,998.60, 169,725.54 and 69,275.08 is: 95,592.55
Step by Step Solution
- Step 1: Write the proportion equation
122,998.60 : 169,725.54 = 69,275.08 : x - Step 2: Convert to fraction form
122,998.60/169,725.54 = 69,275.08/x - Step 3: Cross multiply
122,998.60x = 169,725.54 × 69,275.08 - Step 4: Simplify right side
122,998.60x = 11,757,750,361.54 - Step 5: Solve for x
x = 11,757,750,361.54/122,998.60 - Step 6: Final answer
x = 95,592.55
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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.