Finding the Fourth Proportional to 134,931.87, 202,362.48 and 40,136.55
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Solution
The fourth proportional to 134,931.87, 202,362.48 and 40,136.55 is: 60,194.32
Step by Step Solution
- Step 1: Write the proportion equation
134,931.87 : 202,362.48 = 40,136.55 : x - Step 2: Convert to fraction form
134,931.87/202,362.48 = 40,136.55/x - Step 3: Cross multiply
134,931.87x = 202,362.48 × 40,136.55 - Step 4: Simplify right side
134,931.87x = 8,122,131,796.64 - Step 5: Solve for x
x = 8,122,131,796.64/134,931.87 - Step 6: Final answer
x = 60,194.32
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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.