Finding the Fourth Proportional to 121,135.37, 181,585.01 and 57,938.99
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Solution
The fourth proportional to 121,135.37, 181,585.01 and 57,938.99 is: 86,852.02
Step by Step Solution
- Step 1: Write the proportion equation
121,135.37 : 181,585.01 = 57,938.99 : x - Step 2: Convert to fraction form
121,135.37/181,585.01 = 57,938.99/x - Step 3: Cross multiply
121,135.37x = 181,585.01 × 57,938.99 - Step 4: Simplify right side
121,135.37x = 10,520,851,315.46 - Step 5: Solve for x
x = 10,520,851,315.46/121,135.37 - Step 6: Final answer
x = 86,852.02
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.