Finding the Fourth Proportional to 124,433.21, 186,649.61 and 99,355.75
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Solution
The fourth proportional to 124,433.21, 186,649.61 and 99,355.75 is: 149,033.45
Step by Step Solution
- Step 1: Write the proportion equation
124,433.21 : 186,649.61 = 99,355.75 : x - Step 2: Convert to fraction form
124,433.21/186,649.61 = 99,355.75/x - Step 3: Cross multiply
124,433.21x = 186,649.61 × 99,355.75 - Step 4: Simplify right side
124,433.21x = 18,544,711,025.35 - Step 5: Solve for x
x = 18,544,711,025.35/124,433.21 - Step 6: Final answer
x = 149,033.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.