Finding the Fourth Proportional to 132,984.77, 183,518.91 and 85,238.08
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Solution
The fourth proportional to 132,984.77, 183,518.91 and 85,238.08 is: 117,628.50
Step by Step Solution
- Step 1: Write the proportion equation
132,984.77 : 183,518.91 = 85,238.08 : x - Step 2: Convert to fraction form
132,984.77/183,518.91 = 85,238.08/x - Step 3: Cross multiply
132,984.77x = 183,518.91 × 85,238.08 - Step 4: Simplify right side
132,984.77x = 15,642,799,073.30 - Step 5: Solve for x
x = 15,642,799,073.30/132,984.77 - Step 6: Final answer
x = 117,628.50
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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.