Finding the Fourth Proportional to 133,823.19, 200,735.16 and 45,138.99
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Solution
The fourth proportional to 133,823.19, 200,735.16 and 45,138.99 is: 67,708.61
Step by Step Solution
- Step 1: Write the proportion equation
133,823.19 : 200,735.16 = 45,138.99 : x - Step 2: Convert to fraction form
133,823.19/200,735.16 = 45,138.99/x - Step 3: Cross multiply
133,823.19x = 200,735.16 × 45,138.99 - Step 4: Simplify right side
133,823.19x = 9,060,982,379.89 - Step 5: Solve for x
x = 9,060,982,379.89/133,823.19 - Step 6: Final answer
x = 67,708.61
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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.