Finding the Fourth Proportional to 106,488.66, 159,686.37 and 39,882.08
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Solution
The fourth proportional to 106,488.66, 159,686.37 and 39,882.08 is: 59,805.65
Step by Step Solution
- Step 1: Write the proportion equation
106,488.66 : 159,686.37 = 39,882.08 : x - Step 2: Convert to fraction form
106,488.66/159,686.37 = 39,882.08/x - Step 3: Cross multiply
106,488.66x = 159,686.37 × 39,882.08 - Step 4: Simplify right side
106,488.66x = 6,368,623,784.82 - Step 5: Solve for x
x = 6,368,623,784.82/106,488.66 - Step 6: Final answer
x = 59,805.65
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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.