Finding the Fourth Proportional to 119,909.80, 165,476.10 and 66,193.84
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Solution
The fourth proportional to 119,909.80, 165,476.10 and 66,193.84 is: 91,347.82
Step by Step Solution
- Step 1: Write the proportion equation
119,909.80 : 165,476.10 = 66,193.84 : x - Step 2: Convert to fraction form
119,909.80/165,476.10 = 66,193.84/x - Step 3: Cross multiply
119,909.80x = 165,476.10 × 66,193.84 - Step 4: Simplify right side
119,909.80x = 10,953,498,487.22 - Step 5: Solve for x
x = 10,953,498,487.22/119,909.80 - Step 6: Final answer
x = 91,347.82
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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.