Finding the Fourth Proportional to 121,088.23, 181,639.17 and 36,851.14
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Solution
The fourth proportional to 121,088.23, 181,639.17 and 36,851.14 is: 55,278.79
Step by Step Solution
- Step 1: Write the proportion equation
121,088.23 : 181,639.17 = 36,851.14 : x - Step 2: Convert to fraction form
121,088.23/181,639.17 = 36,851.14/x - Step 3: Cross multiply
121,088.23x = 181,639.17 × 36,851.14 - Step 4: Simplify right side
121,088.23x = 6,693,610,483.15 - Step 5: Solve for x
x = 6,693,610,483.15/121,088.23 - Step 6: Final answer
x = 55,278.79
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.