Finding the Fourth Proportional to 107,988.14, 149,023.86 and 60,240.26
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Solution
The fourth proportional to 107,988.14, 149,023.86 and 60,240.26 is: 83,131.69
Step by Step Solution
- Step 1: Write the proportion equation
107,988.14 : 149,023.86 = 60,240.26 : x - Step 2: Convert to fraction form
107,988.14/149,023.86 = 60,240.26/x - Step 3: Cross multiply
107,988.14x = 149,023.86 × 60,240.26 - Step 4: Simplify right side
107,988.14x = 8,977,236,072.60 - Step 5: Solve for x
x = 8,977,236,072.60/107,988.14 - Step 6: Final answer
x = 83,131.69
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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.