Finding the Fourth Proportional to 119,775.92, 165,319.64 and 72,020.02
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Solution
The fourth proportional to 119,775.92, 165,319.64 and 72,020.02 is: 99,404.99
Step by Step Solution
- Step 1: Write the proportion equation
119,775.92 : 165,319.64 = 72,020.02 : x - Step 2: Convert to fraction form
119,775.92/165,319.64 = 72,020.02/x - Step 3: Cross multiply
119,775.92x = 165,319.64 × 72,020.02 - Step 4: Simplify right side
119,775.92x = 11,906,323,779.19 - Step 5: Solve for x
x = 11,906,323,779.19/119,775.92 - Step 6: Final answer
x = 99,404.99
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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.