Finding the Fourth Proportional to 135,356.23, 202,920.18 and 85,326.07
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Solution
The fourth proportional to 135,356.23, 202,920.18 and 85,326.07 is: 127,917.14
Step by Step Solution
- Step 1: Write the proportion equation
135,356.23 : 202,920.18 = 85,326.07 : x - Step 2: Convert to fraction form
135,356.23/202,920.18 = 85,326.07/x - Step 3: Cross multiply
135,356.23x = 202,920.18 × 85,326.07 - Step 4: Simplify right side
135,356.23x = 17,314,381,483.09 - Step 5: Solve for x
x = 17,314,381,483.09/135,356.23 - Step 6: Final answer
x = 127,917.14
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.