Finding the Fourth Proportional to 106,639.14, 159,835.68 and 40,036.79
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Solution
The fourth proportional to 106,639.14, 159,835.68 and 40,036.79 is: 60,009.00
Step by Step Solution
- Step 1: Write the proportion equation
106,639.14 : 159,835.68 = 40,036.79 : x - Step 2: Convert to fraction form
106,639.14/159,835.68 = 40,036.79/x - Step 3: Cross multiply
106,639.14x = 159,835.68 × 40,036.79 - Step 4: Simplify right side
106,639.14x = 6,399,307,954.26 - Step 5: Solve for x
x = 6,399,307,954.26/106,639.14 - Step 6: Final answer
x = 60,009.00
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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.