Finding the Fourth Proportional to 135,368.66, 186,750.09 and 81,623.82
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Solution
The fourth proportional to 135,368.66, 186,750.09 and 81,623.82 is: 112,605.50
Step by Step Solution
- Step 1: Write the proportion equation
135,368.66 : 186,750.09 = 81,623.82 : x - Step 2: Convert to fraction form
135,368.66/186,750.09 = 81,623.82/x - Step 3: Cross multiply
135,368.66x = 186,750.09 × 81,623.82 - Step 4: Simplify right side
135,368.66x = 15,243,255,380.99 - Step 5: Solve for x
x = 15,243,255,380.99/135,368.66 - Step 6: Final answer
x = 112,605.50
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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.