Finding the Fourth Proportional to 134,912.40, 202,368.60 and 68,557.20
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Solution
The fourth proportional to 134,912.40, 202,368.60 and 68,557.20 is: 102,835.80
Step by Step Solution
- Step 1: Write the proportion equation
134,912.40 : 202,368.60 = 68,557.20 : x - Step 2: Convert to fraction form
134,912.40/202,368.60 = 68,557.20/x - Step 3: Cross multiply
134,912.40x = 202,368.60 × 68,557.20 - Step 4: Simplify right side
134,912.40x = 13,873,824,583.92 - Step 5: Solve for x
x = 13,873,824,583.92/134,912.40 - Step 6: Final answer
x = 102,835.80
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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.