Finding the Fourth Proportional to 163,059.20, 244,588.80 and 74,485.70
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Solution
The fourth proportional to 163,059.20, 244,588.80 and 74,485.70 is: 111,728.55
Step by Step Solution
- Step 1: Write the proportion equation
163,059.20 : 244,588.80 = 74,485.70 : x - Step 2: Convert to fraction form
163,059.20/244,588.80 = 74,485.70/x - Step 3: Cross multiply
163,059.20x = 244,588.80 × 74,485.70 - Step 4: Simplify right side
163,059.20x = 18,218,367,980.16 - Step 5: Solve for x
x = 18,218,367,980.16/163,059.20 - Step 6: Final answer
x = 111,728.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.