Finding the Fourth Proportional to 131,628.48, 181,458.36 and 93,837.12
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Solution
The fourth proportional to 131,628.48, 181,458.36 and 93,837.12 is: 129,360.53
Step by Step Solution
- Step 1: Write the proportion equation
131,628.48 : 181,458.36 = 93,837.12 : x - Step 2: Convert to fraction form
131,628.48/181,458.36 = 93,837.12/x - Step 3: Cross multiply
131,628.48x = 181,458.36 × 93,837.12 - Step 4: Simplify right side
131,628.48x = 17,027,529,902.32 - Step 5: Solve for x
x = 17,027,529,902.32/131,628.48 - Step 6: Final answer
x = 129,360.53
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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.