Finding the Fourth Proportional to 84,313.42, 125,530.41 and 83,135.95
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Solution
The fourth proportional to 84,313.42, 125,530.41 and 83,135.95 is: 123,777.33
Step by Step Solution
- Step 1: Write the proportion equation
84,313.42 : 125,530.41 = 83,135.95 : x - Step 2: Convert to fraction form
84,313.42/125,530.41 = 83,135.95/x - Step 3: Cross multiply
84,313.42x = 125,530.41 × 83,135.95 - Step 4: Simplify right side
84,313.42x = 10,436,089,889.24 - Step 5: Solve for x
x = 10,436,089,889.24/84,313.42 - Step 6: Final answer
x = 123,777.33
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.