Finding the Fourth Proportional to 134,910.21, 186,175.08 and 74,480.94
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Solution
The fourth proportional to 134,910.21, 186,175.08 and 74,480.94 is: 102,783.14
Step by Step Solution
- Step 1: Write the proportion equation
134,910.21 : 186,175.08 = 74,480.94 : x - Step 2: Convert to fraction form
134,910.21/186,175.08 = 74,480.94/x - Step 3: Cross multiply
134,910.21x = 186,175.08 × 74,480.94 - Step 4: Simplify right side
134,910.21x = 13,866,494,962.98 - Step 5: Solve for x
x = 13,866,494,962.98/134,910.21 - Step 6: Final answer
x = 102,783.14
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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.