Finding the Fourth Proportional to 134,943.80, 186,227.98 and 83,986.70
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Solution
The fourth proportional to 134,943.80, 186,227.98 and 83,986.70 is: 115,905.09
Step by Step Solution
- Step 1: Write the proportion equation
134,943.80 : 186,227.98 = 83,986.70 : x - Step 2: Convert to fraction form
134,943.80/186,227.98 = 83,986.70/x - Step 3: Cross multiply
134,943.80x = 186,227.98 × 83,986.70 - Step 4: Simplify right side
134,943.80x = 15,640,672,346.76 - Step 5: Solve for x
x = 15,640,672,346.76/134,943.80 - Step 6: Final answer
x = 115,905.09
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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.