Finding the Fourth Proportional to 158,744.33, 219,066.99 and 87,124.53
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Solution
The fourth proportional to 158,744.33, 219,066.99 and 87,124.53 is: 120,231.75
Step by Step Solution
- Step 1: Write the proportion equation
158,744.33 : 219,066.99 = 87,124.53 : x - Step 2: Convert to fraction form
158,744.33/219,066.99 = 87,124.53/x - Step 3: Cross multiply
158,744.33x = 219,066.99 × 87,124.53 - Step 4: Simplify right side
158,744.33x = 19,086,108,542.26 - Step 5: Solve for x
x = 19,086,108,542.26/158,744.33 - Step 6: Final answer
x = 120,231.75
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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.