Finding the Fourth Proportional to 145,752.81, 218,135.37 and 89,628.45
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Solution
The fourth proportional to 145,752.81, 218,135.37 and 89,628.45 is: 134,138.99
Step by Step Solution
- Step 1: Write the proportion equation
145,752.81 : 218,135.37 = 89,628.45 : x - Step 2: Convert to fraction form
145,752.81/218,135.37 = 89,628.45/x - Step 3: Cross multiply
145,752.81x = 218,135.37 × 89,628.45 - Step 4: Simplify right side
145,752.81x = 19,551,135,103.28 - Step 5: Solve for x
x = 19,551,135,103.28/145,752.81 - Step 6: Final answer
x = 134,138.99
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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.