Finding the Fourth Proportional to 135,076.68, 186,396.51 and 74,646.75
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Solution
The fourth proportional to 135,076.68, 186,396.51 and 74,646.75 is: 103,007.37
Step by Step Solution
- Step 1: Write the proportion equation
135,076.68 : 186,396.51 = 74,646.75 : x - Step 2: Convert to fraction form
135,076.68/186,396.51 = 74,646.75/x - Step 3: Cross multiply
135,076.68x = 186,396.51 × 74,646.75 - Step 4: Simplify right side
135,076.68x = 13,913,893,682.84 - Step 5: Solve for x
x = 13,913,893,682.84/135,076.68 - Step 6: Final answer
x = 103,007.37
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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.