Finding the Fourth Proportional to 106,474.08, 147,000.24 and 74,771.04
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Solution
The fourth proportional to 106,474.08, 147,000.24 and 74,771.04 is: 103,230.39
Step by Step Solution
- Step 1: Write the proportion equation
106,474.08 : 147,000.24 = 74,771.04 : x - Step 2: Convert to fraction form
106,474.08/147,000.24 = 74,771.04/x - Step 3: Cross multiply
106,474.08x = 147,000.24 × 74,771.04 - Step 4: Simplify right side
106,474.08x = 10,991,360,825.05 - Step 5: Solve for x
x = 10,991,360,825.05/106,474.08 - Step 6: Final answer
x = 103,230.39
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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.