Finding the Fourth Proportional to 75,797.80, 113,135.33 and 71,128.36
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Solution
The fourth proportional to 75,797.80, 113,135.33 and 71,128.36 is: 106,165.75
Step by Step Solution
- Step 1: Write the proportion equation
75,797.80 : 113,135.33 = 71,128.36 : x - Step 2: Convert to fraction form
75,797.80/113,135.33 = 71,128.36/x - Step 3: Cross multiply
75,797.80x = 113,135.33 × 71,128.36 - Step 4: Simplify right side
75,797.80x = 8,047,130,480.96 - Step 5: Solve for x
x = 8,047,130,480.96/75,797.80 - Step 6: Final answer
x = 106,165.75
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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.