Finding the Fourth Proportional to 134,451.08, 185,540.99 and 74,020.47
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Solution
The fourth proportional to 134,451.08, 185,540.99 and 74,020.47 is: 102,147.42
Step by Step Solution
- Step 1: Write the proportion equation
134,451.08 : 185,540.99 = 74,020.47 : x - Step 2: Convert to fraction form
134,451.08/185,540.99 = 74,020.47/x - Step 3: Cross multiply
134,451.08x = 185,540.99 × 74,020.47 - Step 4: Simplify right side
134,451.08x = 13,733,831,284.07 - Step 5: Solve for x
x = 13,733,831,284.07/134,451.08 - Step 6: Final answer
x = 102,147.42
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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.