Finding the Fourth Proportional to 146,887.20, 202,703.68 and 86,457.44
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Solution
The fourth proportional to 146,887.20, 202,703.68 and 86,457.44 is: 119,310.88
Step by Step Solution
- Step 1: Write the proportion equation
146,887.20 : 202,703.68 = 86,457.44 : x - Step 2: Convert to fraction form
146,887.20/202,703.68 = 86,457.44/x - Step 3: Cross multiply
146,887.20x = 202,703.68 × 86,457.44 - Step 4: Simplify right side
146,887.20x = 17,525,241,251.38 - Step 5: Solve for x
x = 17,525,241,251.38/146,887.20 - Step 6: Final answer
x = 119,310.88
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.