Finding the Fourth Proportional to 134,616.96, 185,770.53 and 74,187.68
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Solution
The fourth proportional to 134,616.96, 185,770.53 and 74,187.68 is: 102,378.51
Step by Step Solution
- Step 1: Write the proportion equation
134,616.96 : 185,770.53 = 74,187.68 : x - Step 2: Convert to fraction form
134,616.96/185,770.53 = 74,187.68/x - Step 3: Cross multiply
134,616.96x = 185,770.53 × 74,187.68 - Step 4: Simplify right side
134,616.96x = 13,781,883,704.22 - Step 5: Solve for x
x = 13,781,883,704.22/134,616.96 - Step 6: Final answer
x = 102,378.51
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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.