Finding the Fourth Proportional to 110,805.73, 165,969.86 and 75,070.99
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Solution
The fourth proportional to 110,805.73, 165,969.86 and 75,070.99 is: 112,444.74
Step by Step Solution
- Step 1: Write the proportion equation
110,805.73 : 165,969.86 = 75,070.99 : x - Step 2: Convert to fraction form
110,805.73/165,969.86 = 75,070.99/x - Step 3: Cross multiply
110,805.73x = 165,969.86 × 75,070.99 - Step 4: Simplify right side
110,805.73x = 12,459,521,512.68 - Step 5: Solve for x
x = 12,459,521,512.68/110,805.73 - Step 6: Final answer
x = 112,444.74
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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.