Finding the Fourth Proportional to 141,945.80, 212,918.70 and 135,033.80
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Solution
The fourth proportional to 141,945.80, 212,918.70 and 135,033.80 is: 202,550.70
Step by Step Solution
- Step 1: Write the proportion equation
141,945.80 : 212,918.70 = 135,033.80 : x - Step 2: Convert to fraction form
141,945.80/212,918.70 = 135,033.80/x - Step 3: Cross multiply
141,945.80x = 212,918.70 × 135,033.80 - Step 4: Simplify right side
141,945.80x = 28,751,221,152.06 - Step 5: Solve for x
x = 28,751,221,152.06/141,945.80 - Step 6: Final answer
x = 202,550.70
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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.