Finding the Fourth Proportional to 151,725.68, 209,381.28 and 84,657.68
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Solution
The fourth proportional to 151,725.68, 209,381.28 and 84,657.68 is: 116,827.51
Step by Step Solution
- Step 1: Write the proportion equation
151,725.68 : 209,381.28 = 84,657.68 : x - Step 2: Convert to fraction form
151,725.68/209,381.28 = 84,657.68/x - Step 3: Cross multiply
151,725.68x = 209,381.28 × 84,657.68 - Step 4: Simplify right side
151,725.68x = 17,725,733,400.23 - Step 5: Solve for x
x = 17,725,733,400.23/151,725.68 - Step 6: Final answer
x = 116,827.51
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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.