Finding the Fourth Proportional to 146,878.75, 202,693.89 and 79,810.75
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Solution
The fourth proportional to 146,878.75, 202,693.89 and 79,810.75 is: 110,139.50
Step by Step Solution
- Step 1: Write the proportion equation
146,878.75 : 202,693.89 = 79,810.75 : x - Step 2: Convert to fraction form
146,878.75/202,693.89 = 79,810.75/x - Step 3: Cross multiply
146,878.75x = 202,693.89 × 79,810.75 - Step 4: Simplify right side
146,878.75x = 16,177,151,381.32 - Step 5: Solve for x
x = 16,177,151,381.32/146,878.75 - Step 6: Final answer
x = 110,139.50
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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.