Finding the Fourth Proportional to 113,901.64, 157,185.92 and 66,154.99
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Solution
The fourth proportional to 113,901.64, 157,185.92 and 66,154.99 is: 91,294.85
Step by Step Solution
- Step 1: Write the proportion equation
113,901.64 : 157,185.92 = 66,154.99 : x - Step 2: Convert to fraction form
113,901.64/157,185.92 = 66,154.99/x - Step 3: Cross multiply
113,901.64x = 157,185.92 × 66,154.99 - Step 4: Simplify right side
113,901.64x = 10,398,632,965.74 - Step 5: Solve for x
x = 10,398,632,965.74/113,901.64 - Step 6: Final answer
x = 91,294.85
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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.