Finding the Fourth Proportional to 106,191.36, 159,314.62 and 39,631.99
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Solution
The fourth proportional to 106,191.36, 159,314.62 and 39,631.99 is: 59,458.28
Step by Step Solution
- Step 1: Write the proportion equation
106,191.36 : 159,314.62 = 39,631.99 : x - Step 2: Convert to fraction form
106,191.36/159,314.62 = 39,631.99/x - Step 3: Cross multiply
106,191.36x = 159,314.62 × 39,631.99 - Step 4: Simplify right side
106,191.36x = 6,313,955,426.69 - Step 5: Solve for x
x = 6,313,955,426.69/106,191.36 - Step 6: Final answer
x = 59,458.28
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1.5x scale
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.