Finding the Fourth Proportional to 148,842.56, 205,401.91 and 80,858.99
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Solution
The fourth proportional to 148,842.56, 205,401.91 and 80,858.99 is: 111,584.96
Step by Step Solution
- Step 1: Write the proportion equation
148,842.56 : 205,401.91 = 80,858.99 : x - Step 2: Convert to fraction form
148,842.56/205,401.91 = 80,858.99/x - Step 3: Cross multiply
148,842.56x = 205,401.91 × 80,858.99 - Step 4: Simplify right side
148,842.56x = 16,608,590,271.02 - Step 5: Solve for x
x = 16,608,590,271.02/148,842.56 - Step 6: Final answer
x = 111,584.96
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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.