Finding the Fourth Proportional to 112,272.67, 154,962.29 and 74,039.09
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Solution
The fourth proportional to 112,272.67, 154,962.29 and 74,039.09 is: 102,191.09
Step by Step Solution
- Step 1: Write the proportion equation
112,272.67 : 154,962.29 = 74,039.09 : x - Step 2: Convert to fraction form
112,272.67/154,962.29 = 74,039.09/x - Step 3: Cross multiply
112,272.67x = 154,962.29 × 74,039.09 - Step 4: Simplify right side
112,272.67x = 11,473,266,935.92 - Step 5: Solve for x
x = 11,473,266,935.92/112,272.67 - Step 6: Final answer
x = 102,191.09
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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.