Finding the Fourth Proportional to 103,736.95, 143,170.67 and 58,423.79
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Solution
The fourth proportional to 103,736.95, 143,170.67 and 58,423.79 is: 80,632.53
Step by Step Solution
- Step 1: Write the proportion equation
103,736.95 : 143,170.67 = 58,423.79 : x - Step 2: Convert to fraction form
103,736.95/143,170.67 = 58,423.79/x - Step 3: Cross multiply
103,736.95x = 143,170.67 × 58,423.79 - Step 4: Simplify right side
103,736.95x = 8,364,573,158.24 - Step 5: Solve for x
x = 8,364,573,158.24/103,736.95 - Step 6: Final answer
x = 80,632.53
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1.5x scale
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.