Finding the Fourth Proportional to 149,459.67, 206,252.67 and 81,475.17
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Solution
The fourth proportional to 149,459.67, 206,252.67 and 81,475.17 is: 112,434.82
Step by Step Solution
- Step 1: Write the proportion equation
149,459.67 : 206,252.67 = 81,475.17 : x - Step 2: Convert to fraction form
149,459.67/206,252.67 = 81,475.17/x - Step 3: Cross multiply
149,459.67x = 206,252.67 × 81,475.17 - Step 4: Simplify right side
149,459.67x = 16,804,471,351.20 - Step 5: Solve for x
x = 16,804,471,351.20/149,459.67 - Step 6: Final answer
x = 112,434.82
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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.