Finding the Fourth Proportional to 135,077.63, 186,410.84 and 74,652.18
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Solution
The fourth proportional to 135,077.63, 186,410.84 and 74,652.18 is: 103,022.07
Step by Step Solution
- Step 1: Write the proportion equation
135,077.63 : 186,410.84 = 74,652.18 : x - Step 2: Convert to fraction form
135,077.63/186,410.84 = 74,652.18/x - Step 3: Cross multiply
135,077.63x = 186,410.84 × 74,652.18 - Step 4: Simplify right side
135,077.63x = 13,915,976,187.77 - Step 5: Solve for x
x = 13,915,976,187.77/135,077.63 - Step 6: Final answer
x = 103,022.07
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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.