Finding the Fourth Proportional to 134,451.49, 185,539.66 and 74,021.53
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Solution
The fourth proportional to 134,451.49, 185,539.66 and 74,021.53 is: 102,147.84
Step by Step Solution
- Step 1: Write the proportion equation
134,451.49 : 185,539.66 = 74,021.53 : x - Step 2: Convert to fraction form
134,451.49/185,539.66 = 74,021.53/x - Step 3: Cross multiply
134,451.49x = 185,539.66 × 74,021.53 - Step 4: Simplify right side
134,451.49x = 13,733,929,508.88 - Step 5: Solve for x
x = 13,733,929,508.88/134,451.49 - Step 6: Final answer
x = 102,147.84
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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.