Finding the Fourth Proportional to 118,083.27, 162,862.74 and 81,798.41
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Solution
The fourth proportional to 118,083.27, 162,862.74 and 81,798.41 is: 112,817.95
Step by Step Solution
- Step 1: Write the proportion equation
118,083.27 : 162,862.74 = 81,798.41 : x - Step 2: Convert to fraction form
118,083.27/162,862.74 = 81,798.41/x - Step 3: Cross multiply
118,083.27x = 162,862.74 × 81,798.41 - Step 4: Simplify right side
118,083.27x = 13,321,912,059.19 - Step 5: Solve for x
x = 13,321,912,059.19/118,083.27 - Step 6: Final answer
x = 112,817.95
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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.