Finding the Fourth Proportional to 121,104.75, 181,686.30 and 37,998.75
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Solution
The fourth proportional to 121,104.75, 181,686.30 and 37,998.75 is: 57,007.28
Step by Step Solution
- Step 1: Write the proportion equation
121,104.75 : 181,686.30 = 37,998.75 : x - Step 2: Convert to fraction form
121,104.75/181,686.30 = 37,998.75/x - Step 3: Cross multiply
121,104.75x = 181,686.30 × 37,998.75 - Step 4: Simplify right side
121,104.75x = 6,903,852,292.13 - Step 5: Solve for x
x = 6,903,852,292.13/121,104.75 - Step 6: Final answer
x = 57,007.28
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1.5x scale
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.