Finding the Fourth Proportional to 122,108.40, 183,162.60 and 121,330.80
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Solution
The fourth proportional to 122,108.40, 183,162.60 and 121,330.80 is: 181,996.20
Step by Step Solution
- Step 1: Write the proportion equation
122,108.40 : 183,162.60 = 121,330.80 : x - Step 2: Convert to fraction form
122,108.40/183,162.60 = 121,330.80/x - Step 3: Cross multiply
122,108.40x = 183,162.60 × 121,330.80 - Step 4: Simplify right side
122,108.40x = 22,223,264,788.08 - Step 5: Solve for x
x = 22,223,264,788.08/122,108.40 - Step 6: Final answer
x = 181,996.20
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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.