Finding the Fourth Proportional to 125,487.36, 173,253.60 and 77,791.68
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Solution
The fourth proportional to 125,487.36, 173,253.60 and 77,791.68 is: 107,402.76
Step by Step Solution
- Step 1: Write the proportion equation
125,487.36 : 173,253.60 = 77,791.68 : x - Step 2: Convert to fraction form
125,487.36/173,253.60 = 77,791.68/x - Step 3: Cross multiply
125,487.36x = 173,253.60 × 77,791.68 - Step 4: Simplify right side
125,487.36x = 13,477,688,610.05 - Step 5: Solve for x
x = 13,477,688,610.05/125,487.36 - Step 6: Final answer
x = 107,402.76
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1.5x scale
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.