Finding the Fourth Proportional to 140,308.84, 193,629.99 and 83,753.02
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Solution
The fourth proportional to 140,308.84, 193,629.99 and 83,753.02 is: 115,581.43
Step by Step Solution
- Step 1: Write the proportion equation
140,308.84 : 193,629.99 = 83,753.02 : x - Step 2: Convert to fraction form
140,308.84/193,629.99 = 83,753.02/x - Step 3: Cross multiply
140,308.84x = 193,629.99 × 83,753.02 - Step 4: Simplify right side
140,308.84x = 16,217,096,425.07 - Step 5: Solve for x
x = 16,217,096,425.07/140,308.84 - Step 6: Final answer
x = 115,581.43
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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.