Finding the Fourth Proportional to 110,631.70, 152,632.38 and 65,286.99
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Solution
The fourth proportional to 110,631.70, 152,632.38 and 65,286.99 is: 90,072.82
Step by Step Solution
- Step 1: Write the proportion equation
110,631.70 : 152,632.38 = 65,286.99 : x - Step 2: Convert to fraction form
110,631.70/152,632.38 = 65,286.99/x - Step 3: Cross multiply
110,631.70x = 152,632.38 × 65,286.99 - Step 4: Simplify right side
110,631.70x = 9,964,908,666.74 - Step 5: Solve for x
x = 9,964,908,666.74/110,631.70 - Step 6: Final answer
x = 90,072.82
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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.