Finding the Fourth Proportional to 146,864.03, 202,657.11 and 86,431.07
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Solution
The fourth proportional to 146,864.03, 202,657.11 and 86,431.07 is: 119,265.90
Step by Step Solution
- Step 1: Write the proportion equation
146,864.03 : 202,657.11 = 86,431.07 : x - Step 2: Convert to fraction form
146,864.03/202,657.11 = 86,431.07/x - Step 3: Cross multiply
146,864.03x = 202,657.11 × 86,431.07 - Step 4: Simplify right side
146,864.03x = 17,515,869,847.12 - Step 5: Solve for x
x = 17,515,869,847.12/146,864.03 - Step 6: Final answer
x = 119,265.90
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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.