Finding the Fourth Proportional to 119,918.96, 165,554.44 and 72,184.08
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Solution
The fourth proportional to 119,918.96, 165,554.44 and 72,184.08 is: 99,653.92
Step by Step Solution
- Step 1: Write the proportion equation
119,918.96 : 165,554.44 = 72,184.08 : x - Step 2: Convert to fraction form
119,918.96/165,554.44 = 72,184.08/x - Step 3: Cross multiply
119,918.96x = 165,554.44 × 72,184.08 - Step 4: Simplify right side
119,918.96x = 11,950,394,941.32 - Step 5: Solve for x
x = 11,950,394,941.32/119,918.96 - Step 6: Final answer
x = 99,653.92
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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.