Finding the Fourth Proportional to 137,226.24, 205,510.74 and 87,149.64
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Solution
The fourth proportional to 137,226.24, 205,510.74 and 87,149.64 is: 130,515.76
Step by Step Solution
- Step 1: Write the proportion equation
137,226.24 : 205,510.74 = 87,149.64 : x - Step 2: Convert to fraction form
137,226.24/205,510.74 = 87,149.64/x - Step 3: Cross multiply
137,226.24x = 205,510.74 × 87,149.64 - Step 4: Simplify right side
137,226.24x = 17,910,187,007.13 - Step 5: Solve for x
x = 17,910,187,007.13/137,226.24 - Step 6: Final answer
x = 130,515.76
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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.