Finding the Fourth Proportional to 156,882.93, 235,065.75 and 90,378.99
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Solution
The fourth proportional to 156,882.93, 235,065.75 and 90,378.99 is: 135,419.48
Step by Step Solution
- Step 1: Write the proportion equation
156,882.93 : 235,065.75 = 90,378.99 : x - Step 2: Convert to fraction form
156,882.93/235,065.75 = 90,378.99/x - Step 3: Cross multiply
156,882.93x = 235,065.75 × 90,378.99 - Step 4: Simplify right side
156,882.93x = 21,245,004,729.67 - Step 5: Solve for x
x = 21,245,004,729.67/156,882.93 - Step 6: Final answer
x = 135,419.48
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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.