Finding the Fourth Proportional to 120,482.69, 166,261.86 and 66,772.71
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Solution
The fourth proportional to 120,482.69, 166,261.86 and 66,772.71 is: 92,143.99
Step by Step Solution
- Step 1: Write the proportion equation
120,482.69 : 166,261.86 = 66,772.71 : x - Step 2: Convert to fraction form
120,482.69/166,261.86 = 66,772.71/x - Step 3: Cross multiply
120,482.69x = 166,261.86 × 66,772.71 - Step 4: Simplify right side
120,482.69x = 11,101,754,961.84 - Step 5: Solve for x
x = 11,101,754,961.84/120,482.69 - Step 6: Final answer
x = 92,143.99
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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.