Finding the Fourth Proportional to 112,921.18, 155,694.92 and 97,580.28
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Solution
The fourth proportional to 112,921.18, 155,694.92 and 97,580.28 is: 134,543.00
Step by Step Solution
- Step 1: Write the proportion equation
112,921.18 : 155,694.92 = 97,580.28 : x - Step 2: Convert to fraction form
112,921.18/155,694.92 = 97,580.28/x - Step 3: Cross multiply
112,921.18x = 155,694.92 × 97,580.28 - Step 4: Simplify right side
112,921.18x = 15,192,753,888.18 - Step 5: Solve for x
x = 15,192,753,888.18/112,921.18 - Step 6: Final answer
x = 134,543.00
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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.