Finding the Fourth Proportional to 137,971.26, 190,394.73 and 84,346.02
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Solution
The fourth proportional to 137,971.26, 190,394.73 and 84,346.02 is: 116,394.08
Step by Step Solution
- Step 1: Write the proportion equation
137,971.26 : 190,394.73 = 84,346.02 : x - Step 2: Convert to fraction form
137,971.26/190,394.73 = 84,346.02/x - Step 3: Cross multiply
137,971.26x = 190,394.73 × 84,346.02 - Step 4: Simplify right side
137,971.26x = 16,059,037,704.47 - Step 5: Solve for x
x = 16,059,037,704.47/137,971.26 - Step 6: Final answer
x = 116,394.08
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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.