Finding the Fourth Proportional to 120,063.12, 165,699.93 and 69,078.08
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Solution
The fourth proportional to 120,063.12, 165,699.93 and 69,078.08 is: 95,335.12
Step by Step Solution
- Step 1: Write the proportion equation
120,063.12 : 165,699.93 = 69,078.08 : x - Step 2: Convert to fraction form
120,063.12/165,699.93 = 69,078.08/x - Step 3: Cross multiply
120,063.12x = 165,699.93 × 69,078.08 - Step 4: Simplify right side
120,063.12x = 11,446,232,192.03 - Step 5: Solve for x
x = 11,446,232,192.03/120,063.12 - Step 6: Final answer
x = 95,335.12
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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.