Finding the Fourth Proportional to 112,279.96, 168,370.66 and 42,110.07
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Solution
The fourth proportional to 112,279.96, 168,370.66 and 42,110.07 is: 63,146.62
Step by Step Solution
- Step 1: Write the proportion equation
112,279.96 : 168,370.66 = 42,110.07 : x - Step 2: Convert to fraction form
112,279.96/168,370.66 = 42,110.07/x - Step 3: Cross multiply
112,279.96x = 168,370.66 × 42,110.07 - Step 4: Simplify right side
112,279.96x = 7,090,100,278.55 - Step 5: Solve for x
x = 7,090,100,278.55/112,279.96 - Step 6: Final answer
x = 63,146.62
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.