Finding the Fourth Proportional to 103,469.70, 154,449.36 and 88,773.06
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Solution
The fourth proportional to 103,469.70, 154,449.36 and 88,773.06 is: 132,511.66
Step by Step Solution
- Step 1: Write the proportion equation
103,469.70 : 154,449.36 = 88,773.06 : x - Step 2: Convert to fraction form
103,469.70/154,449.36 = 88,773.06/x - Step 3: Cross multiply
103,469.70x = 154,449.36 × 88,773.06 - Step 4: Simplify right side
103,469.70x = 13,710,942,631.75 - Step 5: Solve for x
x = 13,710,942,631.75/103,469.70 - Step 6: Final answer
x = 132,511.66
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.