Finding the Fourth Proportional to 145,879.23, 201,305.58 and 81,355.10
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Solution
The fourth proportional to 145,879.23, 201,305.58 and 81,355.10 is: 112,265.70
Step by Step Solution
- Step 1: Write the proportion equation
145,879.23 : 201,305.58 = 81,355.10 : x - Step 2: Convert to fraction form
145,879.23/201,305.58 = 81,355.10/x - Step 3: Cross multiply
145,879.23x = 201,305.58 × 81,355.10 - Step 4: Simplify right side
145,879.23x = 16,377,234,584.93 - Step 5: Solve for x
x = 16,377,234,584.93/145,879.23 - Step 6: Final answer
x = 112,265.70
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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.