Finding the Fourth Proportional to 106,986.08, 160,466.16 and 54,433.28
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Solution
The fourth proportional to 106,986.08, 160,466.16 and 54,433.28 is: 81,643.33
Step by Step Solution
- Step 1: Write the proportion equation
106,986.08 : 160,466.16 = 54,433.28 : x - Step 2: Convert to fraction form
106,986.08/160,466.16 = 54,433.28/x - Step 3: Cross multiply
106,986.08x = 160,466.16 × 54,433.28 - Step 4: Simplify right side
106,986.08x = 8,734,699,417.80 - Step 5: Solve for x
x = 8,734,699,417.80/106,986.08 - Step 6: Final answer
x = 81,643.33
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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.