Finding the Fourth Proportional to 153,826.24, 212,299.64 and 89,281.68
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Solution
The fourth proportional to 153,826.24, 212,299.64 and 89,281.68 is: 123,219.99
Step by Step Solution
- Step 1: Write the proportion equation
153,826.24 : 212,299.64 = 89,281.68 : x - Step 2: Convert to fraction form
153,826.24/212,299.64 = 89,281.68/x - Step 3: Cross multiply
153,826.24x = 212,299.64 × 89,281.68 - Step 4: Simplify right side
153,826.24x = 18,954,468,522.60 - Step 5: Solve for x
x = 18,954,468,522.60/153,826.24 - Step 6: Final answer
x = 123,219.99
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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.