Finding the Fourth Proportional to 99,649.26, 138,109.53 and 97,783.02
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Solution
The fourth proportional to 99,649.26, 138,109.53 and 97,783.02 is: 135,523.00
Step by Step Solution
- Step 1: Write the proportion equation
99,649.26 : 138,109.53 = 97,783.02 : x - Step 2: Convert to fraction form
99,649.26/138,109.53 = 97,783.02/x - Step 3: Cross multiply
99,649.26x = 138,109.53 × 97,783.02 - Step 4: Simplify right side
99,649.26x = 13,504,766,934.18 - Step 5: Solve for x
x = 13,504,766,934.18/99,649.26 - Step 6: Final answer
x = 135,523.00
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.