Finding the Fourth Proportional to 106,537.02, 159,653.25 and 78,235.08
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Solution
The fourth proportional to 106,537.02, 159,653.25 and 78,235.08 is: 117,240.79
Step by Step Solution
- Step 1: Write the proportion equation
106,537.02 : 159,653.25 = 78,235.08 : x - Step 2: Convert to fraction form
106,537.02/159,653.25 = 78,235.08/x - Step 3: Cross multiply
106,537.02x = 159,653.25 × 78,235.08 - Step 4: Simplify right side
106,537.02x = 12,490,484,786.01 - Step 5: Solve for x
x = 12,490,484,786.01/106,537.02 - Step 6: Final answer
x = 117,240.79
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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.