Finding the Fourth Proportional to 134,843.60, 202,216.80 and 68,261.60
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Solution
The fourth proportional to 134,843.60, 202,216.80 and 68,261.60 is: 102,367.80
Step by Step Solution
- Step 1: Write the proportion equation
134,843.60 : 202,216.80 = 68,261.60 : x - Step 2: Convert to fraction form
134,843.60/202,216.80 = 68,261.60/x - Step 3: Cross multiply
134,843.60x = 202,216.80 × 68,261.60 - Step 4: Simplify right side
134,843.60x = 13,803,642,314.88 - Step 5: Solve for x
x = 13,803,642,314.88/134,843.60 - Step 6: Final answer
x = 102,367.80
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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.