Finding the Fourth Proportional to 91,150.74, 136,529.28 and 88,920.00
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Solution
The fourth proportional to 91,150.74, 136,529.28 and 88,920.00 is: 133,187.99
Step by Step Solution
- Step 1: Write the proportion equation
91,150.74 : 136,529.28 = 88,920.00 : x - Step 2: Convert to fraction form
91,150.74/136,529.28 = 88,920.00/x - Step 3: Cross multiply
91,150.74x = 136,529.28 × 88,920.00 - Step 4: Simplify right side
91,150.74x = 12,140,183,918.92 - Step 5: Solve for x
x = 12,140,183,918.92/91,150.74 - Step 6: Final answer
x = 133,187.99
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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.