Finding the Fourth Proportional to 135,631.77, 187,170.91 and 75,202.44
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Solution
The fourth proportional to 135,631.77, 187,170.91 and 75,202.44 is: 103,778.85
Step by Step Solution
- Step 1: Write the proportion equation
135,631.77 : 187,170.91 = 75,202.44 : x - Step 2: Convert to fraction form
135,631.77/187,170.91 = 75,202.44/x - Step 3: Cross multiply
135,631.77x = 187,170.91 × 75,202.44 - Step 4: Simplify right side
135,631.77x = 14,075,709,129.02 - Step 5: Solve for x
x = 14,075,709,129.02/135,631.77 - Step 6: Final answer
x = 103,778.85
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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.