Finding the Fourth Proportional to 134,649.60, 185,807.99 and 74,216.92
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Solution
The fourth proportional to 134,649.60, 185,807.99 and 74,216.92 is: 102,414.69
Step by Step Solution
- Step 1: Write the proportion equation
134,649.60 : 185,807.99 = 74,216.92 : x - Step 2: Convert to fraction form
134,649.60/185,807.99 = 74,216.92/x - Step 3: Cross multiply
134,649.60x = 185,807.99 × 74,216.92 - Step 4: Simplify right side
134,649.60x = 13,790,096,729.19 - Step 5: Solve for x
x = 13,790,096,729.19/134,649.60 - Step 6: Final answer
x = 102,414.69
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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.