Finding the Fourth Proportional to 101,887.15, 152,631.91 and 66,720.19
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Solution
The fourth proportional to 101,887.15, 152,631.91 and 66,720.19 is: 99,950.09
Step by Step Solution
- Step 1: Write the proportion equation
101,887.15 : 152,631.91 = 66,720.19 : x - Step 2: Convert to fraction form
101,887.15/152,631.91 = 66,720.19/x - Step 3: Cross multiply
101,887.15x = 152,631.91 × 66,720.19 - Step 4: Simplify right side
101,887.15x = 10,183,630,035.26 - Step 5: Solve for x
x = 10,183,630,035.26/101,887.15 - Step 6: Final answer
x = 99,950.09
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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.