Finding the Fourth Proportional to 108,640.84, 149,911.14 and 60,883.96
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Solution
The fourth proportional to 108,640.84, 149,911.14 and 60,883.96 is: 84,012.46
Step by Step Solution
- Step 1: Write the proportion equation
108,640.84 : 149,911.14 = 60,883.96 : x - Step 2: Convert to fraction form
108,640.84/149,911.14 = 60,883.96/x - Step 3: Cross multiply
108,640.84x = 149,911.14 × 60,883.96 - Step 4: Simplify right side
108,640.84x = 9,127,183,851.31 - Step 5: Solve for x
x = 9,127,183,851.31/108,640.84 - Step 6: Final answer
x = 84,012.46
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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.