Finding the Fourth Proportional to 143,177.29, 197,589.18 and 85,797.70
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Solution
The fourth proportional to 143,177.29, 197,589.18 and 85,797.70 is: 118,403.53
Step by Step Solution
- Step 1: Write the proportion equation
143,177.29 : 197,589.18 = 85,797.70 : x - Step 2: Convert to fraction form
143,177.29/197,589.18 = 85,797.70/x - Step 3: Cross multiply
143,177.29x = 197,589.18 × 85,797.70 - Step 4: Simplify right side
143,177.29x = 16,952,697,188.89 - Step 5: Solve for x
x = 16,952,697,188.89/143,177.29 - Step 6: Final answer
x = 118,403.53
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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.