Finding the Fourth Proportional to 99,607.98, 149,165.94 and 74,246.70
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Solution
The fourth proportional to 99,607.98, 149,165.94 and 74,246.70 is: 111,186.66
Step by Step Solution
- Step 1: Write the proportion equation
99,607.98 : 149,165.94 = 74,246.70 : x - Step 2: Convert to fraction form
99,607.98/149,165.94 = 74,246.70/x - Step 3: Cross multiply
99,607.98x = 149,165.94 × 74,246.70 - Step 4: Simplify right side
99,607.98x = 11,075,078,797.40 - Step 5: Solve for x
x = 11,075,078,797.40/99,607.98 - Step 6: Final answer
x = 111,186.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.