Finding the Fourth Proportional to 115,301.09, 159,115.46 and 65,000.09
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Solution
The fourth proportional to 115,301.09, 159,115.46 and 65,000.09 is: 89,700.09
Step by Step Solution
- Step 1: Write the proportion equation
115,301.09 : 159,115.46 = 65,000.09 : x - Step 2: Convert to fraction form
115,301.09/159,115.46 = 65,000.09/x - Step 3: Cross multiply
115,301.09x = 159,115.46 × 65,000.09 - Step 4: Simplify right side
115,301.09x = 10,342,518,099.81 - Step 5: Solve for x
x = 10,342,518,099.81/115,301.09 - Step 6: Final answer
x = 89,700.09
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.