Finding the Fourth Proportional to 102,424.36, 141,237.84 and 80,878.36
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Solution
The fourth proportional to 102,424.36, 141,237.84 and 80,878.36 is: 111,527.03
Step by Step Solution
- Step 1: Write the proportion equation
102,424.36 : 141,237.84 = 80,878.36 : x - Step 2: Convert to fraction form
102,424.36/141,237.84 = 80,878.36/x - Step 3: Cross multiply
102,424.36x = 141,237.84 × 80,878.36 - Step 4: Simplify right side
102,424.36x = 11,423,084,869.14 - Step 5: Solve for x
x = 11,423,084,869.14/102,424.36 - Step 6: Final answer
x = 111,527.03
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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.