Finding the Fourth Proportional to 135,965.28, 187,579.68 and 100,240.08
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Solution
The fourth proportional to 135,965.28, 187,579.68 and 100,240.08 is: 138,292.67
Step by Step Solution
- Step 1: Write the proportion equation
135,965.28 : 187,579.68 = 100,240.08 : x - Step 2: Convert to fraction form
135,965.28/187,579.68 = 100,240.08/x - Step 3: Cross multiply
135,965.28x = 187,579.68 × 100,240.08 - Step 4: Simplify right side
135,965.28x = 18,803,002,129.57 - Step 5: Solve for x
x = 18,803,002,129.57/135,965.28 - Step 6: Final answer
x = 138,292.67
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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.