Finding the Fourth Proportional to 112,608.10, 155,220.51 and 88,696.90
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Solution
The fourth proportional to 112,608.10, 155,220.51 and 88,696.90 is: 122,260.99
Step by Step Solution
- Step 1: Write the proportion equation
112,608.10 : 155,220.51 = 88,696.90 : x - Step 2: Convert to fraction form
112,608.10/155,220.51 = 88,696.90/x - Step 3: Cross multiply
112,608.10x = 155,220.51 × 88,696.90 - Step 4: Simplify right side
112,608.10x = 13,767,578,053.42 - Step 5: Solve for x
x = 13,767,578,053.42/112,608.10 - Step 6: Final answer
x = 122,260.99
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1.5x scale
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.