Finding the Fourth Proportional to 98,817.22, 136,367.60 and 53,495.19
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Solution
The fourth proportional to 98,817.22, 136,367.60 and 53,495.19 is: 73,823.27
Step by Step Solution
- Step 1: Write the proportion equation
98,817.22 : 136,367.60 = 53,495.19 : x - Step 2: Convert to fraction form
98,817.22/136,367.60 = 53,495.19/x - Step 3: Cross multiply
98,817.22x = 136,367.60 × 53,495.19 - Step 4: Simplify right side
98,817.22x = 7,295,009,990.01 - Step 5: Solve for x
x = 7,295,009,990.01/98,817.22 - Step 6: Final answer
x = 73,823.27
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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.