Finding the Fourth Proportional to 99,126.98, 136,791.54 and 53,803.98
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Solution
The fourth proportional to 99,126.98, 136,791.54 and 53,803.98 is: 74,247.50
Step by Step Solution
- Step 1: Write the proportion equation
99,126.98 : 136,791.54 = 53,803.98 : x - Step 2: Convert to fraction form
99,126.98/136,791.54 = 53,803.98/x - Step 3: Cross multiply
99,126.98x = 136,791.54 × 53,803.98 - Step 4: Simplify right side
99,126.98x = 7,359,929,897.25 - Step 5: Solve for x
x = 7,359,929,897.25/99,126.98 - Step 6: Final answer
x = 74,247.50
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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.