Finding the Fourth Proportional to 122,282.36, 168,751.44 and 71,293.70
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Solution
The fourth proportional to 122,282.36, 168,751.44 and 71,293.70 is: 98,386.35
Step by Step Solution
- Step 1: Write the proportion equation
122,282.36 : 168,751.44 = 71,293.70 : x - Step 2: Convert to fraction form
122,282.36/168,751.44 = 71,293.70/x - Step 3: Cross multiply
122,282.36x = 168,751.44 × 71,293.70 - Step 4: Simplify right side
122,282.36x = 12,030,914,537.93 - Step 5: Solve for x
x = 12,030,914,537.93/122,282.36 - Step 6: Final answer
x = 98,386.35
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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.