Finding the Fourth Proportional to 106,896.81, 160,368.12 and 39,429.09
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Solution
The fourth proportional to 106,896.81, 160,368.12 and 39,429.09 is: 59,152.08
Step by Step Solution
- Step 1: Write the proportion equation
106,896.81 : 160,368.12 = 39,429.09 : x - Step 2: Convert to fraction form
106,896.81/160,368.12 = 39,429.09/x - Step 3: Cross multiply
106,896.81x = 160,368.12 × 39,429.09 - Step 4: Simplify right side
106,896.81x = 6,323,169,036.61 - Step 5: Solve for x
x = 6,323,169,036.61/106,896.81 - Step 6: Final answer
x = 59,152.08
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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.