Finding the Fourth Proportional to 122,159.84, 168,577.08 and 71,183.84
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Solution
The fourth proportional to 122,159.84, 168,577.08 and 71,183.84 is: 98,231.66
Step by Step Solution
- Step 1: Write the proportion equation
122,159.84 : 168,577.08 = 71,183.84 : x - Step 2: Convert to fraction form
122,159.84/168,577.08 = 71,183.84/x - Step 3: Cross multiply
122,159.84x = 168,577.08 × 71,183.84 - Step 4: Simplify right side
122,159.84x = 11,999,963,890.39 - Step 5: Solve for x
x = 11,999,963,890.39/122,159.84 - Step 6: Final answer
x = 98,231.66
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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.