Finding the Fourth Proportional to 145,351.99, 217,988.16 and 91,963.68
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Solution
The fourth proportional to 145,351.99, 217,988.16 and 91,963.68 is: 137,920.32
Step by Step Solution
- Step 1: Write the proportion equation
145,351.99 : 217,988.16 = 91,963.68 : x - Step 2: Convert to fraction form
145,351.99/217,988.16 = 91,963.68/x - Step 3: Cross multiply
145,351.99x = 217,988.16 × 91,963.68 - Step 4: Simplify right side
145,351.99x = 20,046,993,390.03 - Step 5: Solve for x
x = 20,046,993,390.03/145,351.99 - Step 6: Final answer
x = 137,920.32
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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.