Finding the Fourth Proportional to 83,112.67, 124,138.65 and 75,203.02
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Solution
The fourth proportional to 83,112.67, 124,138.65 and 75,203.02 is: 112,324.65
Step by Step Solution
- Step 1: Write the proportion equation
83,112.67 : 124,138.65 = 75,203.02 : x - Step 2: Convert to fraction form
83,112.67/124,138.65 = 75,203.02/x - Step 3: Cross multiply
83,112.67x = 124,138.65 × 75,203.02 - Step 4: Simplify right side
83,112.67x = 9,335,601,209.38 - Step 5: Solve for x
x = 9,335,601,209.38/83,112.67 - Step 6: Final answer
x = 112,324.65
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.