Finding the Fourth Proportional to 117,857.61, 176,580.14 and 80,295.75
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Solution
The fourth proportional to 117,857.61, 176,580.14 and 80,295.75 is: 120,303.09
Step by Step Solution
- Step 1: Write the proportion equation
117,857.61 : 176,580.14 = 80,295.75 : x - Step 2: Convert to fraction form
117,857.61/176,580.14 = 80,295.75/x - Step 3: Cross multiply
117,857.61x = 176,580.14 × 80,295.75 - Step 4: Simplify right side
117,857.61x = 14,178,634,374.93 - Step 5: Solve for x
x = 14,178,634,374.93/117,857.61 - Step 6: Final answer
x = 120,303.09
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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.