Finding the Fourth Proportional to 151,135.79, 208,544.09 and 87,461.28
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Solution
The fourth proportional to 151,135.79, 208,544.09 and 87,461.28 is: 120,683.08
Step by Step Solution
- Step 1: Write the proportion equation
151,135.79 : 208,544.09 = 87,461.28 : x - Step 2: Convert to fraction form
151,135.79/208,544.09 = 87,461.28/x - Step 3: Cross multiply
151,135.79x = 208,544.09 × 87,461.28 - Step 4: Simplify right side
151,135.79x = 18,239,532,610.53 - Step 5: Solve for x
x = 18,239,532,610.53/151,135.79 - Step 6: Final answer
x = 120,683.08
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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.