Finding the Fourth Proportional to 135,692.10, 187,266.60 and 75,282.18
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Solution
The fourth proportional to 135,692.10, 187,266.60 and 75,282.18 is: 103,895.79
Step by Step Solution
- Step 1: Write the proportion equation
135,692.10 : 187,266.60 = 75,282.18 : x - Step 2: Convert to fraction form
135,692.10/187,266.60 = 75,282.18/x - Step 3: Cross multiply
135,692.10x = 187,266.60 × 75,282.18 - Step 4: Simplify right side
135,692.10x = 14,097,837,889.19 - Step 5: Solve for x
x = 14,097,837,889.19/135,692.10 - Step 6: Final answer
x = 103,895.79
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1.5x scale
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.