Finding the Fourth Proportional to 159,890.24, 239,836.32 and 71,122.88
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Solution
The fourth proportional to 159,890.24, 239,836.32 and 71,122.88 is: 106,684.75
Step by Step Solution
- Step 1: Write the proportion equation
159,890.24 : 239,836.32 = 71,122.88 : x - Step 2: Convert to fraction form
159,890.24/239,836.32 = 71,122.88/x - Step 3: Cross multiply
159,890.24x = 239,836.32 × 71,122.88 - Step 4: Simplify right side
159,890.24x = 17,057,849,807.00 - Step 5: Solve for x
x = 17,057,849,807.00/159,890.24 - Step 6: Final answer
x = 106,684.75
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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.