Finding the Fourth Proportional to 113,900.64, 157,184.54 and 66,153.99
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Solution
The fourth proportional to 113,900.64, 157,184.54 and 66,153.99 is: 91,293.47
Step by Step Solution
- Step 1: Write the proportion equation
113,900.64 : 157,184.54 = 66,153.99 : x - Step 2: Convert to fraction form
113,900.64/157,184.54 = 66,153.99/x - Step 3: Cross multiply
113,900.64x = 157,184.54 × 66,153.99 - Step 4: Simplify right side
113,900.64x = 10,398,384,487.31 - Step 5: Solve for x
x = 10,398,384,487.31/113,900.64 - Step 6: Final answer
x = 91,293.47
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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.