Finding the Fourth Proportional to 108,518.21, 149,761.36 and 60,771.14
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Solution
The fourth proportional to 108,518.21, 149,761.36 and 60,771.14 is: 83,867.66
Step by Step Solution
- Step 1: Write the proportion equation
108,518.21 : 149,761.36 = 60,771.14 : x - Step 2: Convert to fraction form
108,518.21/149,761.36 = 60,771.14/x - Step 3: Cross multiply
108,518.21x = 149,761.36 × 60,771.14 - Step 4: Simplify right side
108,518.21x = 9,101,168,271.29 - Step 5: Solve for x
x = 9,101,168,271.29/108,518.21 - Step 6: Final answer
x = 83,867.66
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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.