Finding the Fourth Proportional to 106,901.08, 147,524.88 and 66,631.12
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Solution
The fourth proportional to 106,901.08, 147,524.88 and 66,631.12 is: 91,951.81
Step by Step Solution
- Step 1: Write the proportion equation
106,901.08 : 147,524.88 = 66,631.12 : x - Step 2: Convert to fraction form
106,901.08/147,524.88 = 66,631.12/x - Step 3: Cross multiply
106,901.08x = 147,524.88 × 66,631.12 - Step 4: Simplify right side
106,901.08x = 9,829,747,982.27 - Step 5: Solve for x
x = 9,829,747,982.27/106,901.08 - Step 6: Final answer
x = 91,951.81
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1.5x scale
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.