Finding the Fourth Proportional to 145,220.13, 217,855.58 and 66,342.33
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Solution
The fourth proportional to 145,220.13, 217,855.58 and 66,342.33 is: 99,525.09
Step by Step Solution
- Step 1: Write the proportion equation
145,220.13 : 217,855.58 = 66,342.33 : x - Step 2: Convert to fraction form
145,220.13/217,855.58 = 66,342.33/x - Step 3: Cross multiply
145,220.13x = 217,855.58 × 66,342.33 - Step 4: Simplify right side
145,220.13x = 14,453,046,448.99 - Step 5: Solve for x
x = 14,453,046,448.99/145,220.13 - Step 6: Final answer
x = 99,525.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.