Finding the Fourth Proportional to 98,636.01, 136,114.96 and 55,615.12
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Solution
The fourth proportional to 98,636.01, 136,114.96 and 55,615.12 is: 76,747.32
Step by Step Solution
- Step 1: Write the proportion equation
98,636.01 : 136,114.96 = 55,615.12 : x - Step 2: Convert to fraction form
98,636.01/136,114.96 = 55,615.12/x - Step 3: Cross multiply
98,636.01x = 136,114.96 × 55,615.12 - Step 4: Simplify right side
98,636.01x = 7,570,049,834.20 - Step 5: Solve for x
x = 7,570,049,834.20/98,636.01 - Step 6: Final answer
x = 76,747.32
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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.