Finding the Fourth Proportional to 135,107.52, 202,641.84 and 78,973.44
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Solution
The fourth proportional to 135,107.52, 202,641.84 and 78,973.44 is: 118,448.80
Step by Step Solution
- Step 1: Write the proportion equation
135,107.52 : 202,641.84 = 78,973.44 : x - Step 2: Convert to fraction form
135,107.52/202,641.84 = 78,973.44/x - Step 3: Cross multiply
135,107.52x = 202,641.84 × 78,973.44 - Step 4: Simplify right side
135,107.52x = 16,003,323,192.73 - Step 5: Solve for x
x = 16,003,323,192.73/135,107.52 - Step 6: Final answer
x = 118,448.80
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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.