Finding the Fourth Proportional to 135,100.34, 186,448.11 and 74,669.68
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Solution
The fourth proportional to 135,100.34, 186,448.11 and 74,669.68 is: 103,049.49
Step by Step Solution
- Step 1: Write the proportion equation
135,100.34 : 186,448.11 = 74,669.68 : x - Step 2: Convert to fraction form
135,100.34/186,448.11 = 74,669.68/x - Step 3: Cross multiply
135,100.34x = 186,448.11 × 74,669.68 - Step 4: Simplify right side
135,100.34x = 13,922,020,710.30 - Step 5: Solve for x
x = 13,922,020,710.30/135,100.34 - Step 6: Final answer
x = 103,049.49
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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.