Finding the Fourth Proportional to 134,438.10, 201,657.15 and 45,791.70
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Solution
The fourth proportional to 134,438.10, 201,657.15 and 45,791.70 is: 68,687.55
Step by Step Solution
- Step 1: Write the proportion equation
134,438.10 : 201,657.15 = 45,791.70 : x - Step 2: Convert to fraction form
134,438.10/201,657.15 = 45,791.70/x - Step 3: Cross multiply
134,438.10x = 201,657.15 × 45,791.70 - Step 4: Simplify right side
134,438.10x = 9,234,223,715.66 - Step 5: Solve for x
x = 9,234,223,715.66/134,438.10 - Step 6: Final answer
x = 68,687.55
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1.5x scale
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.