Finding the Fourth Proportional to 134,915.68, 186,186.36 and 74,486.08
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Solution
The fourth proportional to 134,915.68, 186,186.36 and 74,486.08 is: 102,792.29
Step by Step Solution
- Step 1: Write the proportion equation
134,915.68 : 186,186.36 = 74,486.08 : x - Step 2: Convert to fraction form
134,915.68/186,186.36 = 74,486.08/x - Step 3: Cross multiply
134,915.68x = 186,186.36 × 74,486.08 - Step 4: Simplify right side
134,915.68x = 13,868,292,105.87 - Step 5: Solve for x
x = 13,868,292,105.87/134,915.68 - Step 6: Final answer
x = 102,792.29
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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.