Finding the Fourth Proportional to 135,966.93, 203,513.67 and 72,628.68
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Solution
The fourth proportional to 135,966.93, 203,513.67 and 72,628.68 is: 108,709.74
Step by Step Solution
- Step 1: Write the proportion equation
135,966.93 : 203,513.67 = 72,628.68 : x - Step 2: Convert to fraction form
135,966.93/203,513.67 = 72,628.68/x - Step 3: Cross multiply
135,966.93x = 203,513.67 × 72,628.68 - Step 4: Simplify right side
135,966.93x = 14,780,929,214.06 - Step 5: Solve for x
x = 14,780,929,214.06/135,966.93 - Step 6: Final answer
x = 108,709.74
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.