Finding the Fourth Proportional to 122,451.60, 183,677.40 and 121,285.20
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Solution
The fourth proportional to 122,451.60, 183,677.40 and 121,285.20 is: 181,927.80
Step by Step Solution
- Step 1: Write the proportion equation
122,451.60 : 183,677.40 = 121,285.20 : x - Step 2: Convert to fraction form
122,451.60/183,677.40 = 121,285.20/x - Step 3: Cross multiply
122,451.60x = 183,677.40 × 121,285.20 - Step 4: Simplify right side
122,451.60x = 22,277,350,194.48 - Step 5: Solve for x
x = 22,277,350,194.48/122,451.60 - Step 6: Final answer
x = 181,927.80
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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.