Finding the Fourth Proportional to 141,855.22, 195,777.93 and 81,444.79
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Solution
The fourth proportional to 141,855.22, 195,777.93 and 81,444.79 is: 112,403.99
Step by Step Solution
- Step 1: Write the proportion equation
141,855.22 : 195,777.93 = 81,444.79 : x - Step 2: Convert to fraction form
141,855.22/195,777.93 = 81,444.79/x - Step 3: Cross multiply
141,855.22x = 195,777.93 × 81,444.79 - Step 4: Simplify right side
141,855.22x = 15,945,092,395.48 - Step 5: Solve for x
x = 15,945,092,395.48/141,855.22 - Step 6: Final answer
x = 112,403.99
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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.