Finding the Fourth Proportional to 135,168.30, 186,536.18 and 73,918.09
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Solution
The fourth proportional to 135,168.30, 186,536.18 and 73,918.09 is: 102,009.11
Step by Step Solution
- Step 1: Write the proportion equation
135,168.30 : 186,536.18 = 73,918.09 : x - Step 2: Convert to fraction form
135,168.30/186,536.18 = 73,918.09/x - Step 3: Cross multiply
135,168.30x = 186,536.18 × 73,918.09 - Step 4: Simplify right side
135,168.30x = 13,788,398,559.46 - Step 5: Solve for x
x = 13,788,398,559.46/135,168.30 - Step 6: Final answer
x = 102,009.11
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1.5x scale
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.