Finding the Fourth Proportional to 135,262.13, 186,664.73 and 74,837.07
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Solution
The fourth proportional to 135,262.13, 186,664.73 and 74,837.07 is: 103,276.81
Step by Step Solution
- Step 1: Write the proportion equation
135,262.13 : 186,664.73 = 74,837.07 : x - Step 2: Convert to fraction form
135,262.13/186,664.73 = 74,837.07/x - Step 3: Cross multiply
135,262.13x = 186,664.73 × 74,837.07 - Step 4: Simplify right side
135,262.13x = 13,969,441,091.36 - Step 5: Solve for x
x = 13,969,441,091.36/135,262.13 - Step 6: Final answer
x = 103,276.81
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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.