Finding the Fourth Proportional to 99,657.95, 137,450.21 and 63,851.31
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Solution
The fourth proportional to 99,657.95, 137,450.21 and 63,851.31 is: 88,064.99
Step by Step Solution
- Step 1: Write the proportion equation
99,657.95 : 137,450.21 = 63,851.31 : x - Step 2: Convert to fraction form
99,657.95/137,450.21 = 63,851.31/x - Step 3: Cross multiply
99,657.95x = 137,450.21 × 63,851.31 - Step 4: Simplify right side
99,657.95x = 8,776,375,649.02 - Step 5: Solve for x
x = 8,776,375,649.02/99,657.95 - Step 6: Final answer
x = 88,064.99
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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.