Finding the Fourth Proportional to 119,917.96, 165,553.06 and 72,183.08
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Solution
The fourth proportional to 119,917.96, 165,553.06 and 72,183.08 is: 99,652.54
Step by Step Solution
- Step 1: Write the proportion equation
119,917.96 : 165,553.06 = 72,183.08 : x - Step 2: Convert to fraction form
119,917.96/165,553.06 = 72,183.08/x - Step 3: Cross multiply
119,917.96x = 165,553.06 × 72,183.08 - Step 4: Simplify right side
119,917.96x = 11,950,129,774.22 - Step 5: Solve for x
x = 11,950,129,774.22/119,917.96 - Step 6: Final answer
x = 99,652.54
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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.