Finding the Fourth Proportional to 134,915.74, 186,182.73 and 74,486.38
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Solution
The fourth proportional to 134,915.74, 186,182.73 and 74,486.38 is: 102,790.66
Step by Step Solution
- Step 1: Write the proportion equation
134,915.74 : 186,182.73 = 74,486.38 : x - Step 2: Convert to fraction form
134,915.74/186,182.73 = 74,486.38/x - Step 3: Cross multiply
134,915.74x = 186,182.73 × 74,486.38 - Step 4: Simplify right side
134,915.74x = 13,868,077,576.22 - Step 5: Solve for x
x = 13,868,077,576.22/134,915.74 - Step 6: Final answer
x = 102,790.66
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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.