Finding the Fourth Proportional to 132,430.58, 182,793.70 and 87,143.48
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Solution
The fourth proportional to 132,430.58, 182,793.70 and 87,143.48 is: 120,283.99
Step by Step Solution
- Step 1: Write the proportion equation
132,430.58 : 182,793.70 = 87,143.48 : x - Step 2: Convert to fraction form
132,430.58/182,793.70 = 87,143.48/x - Step 3: Cross multiply
132,430.58x = 182,793.70 × 87,143.48 - Step 4: Simplify right side
132,430.58x = 15,929,279,140.08 - Step 5: Solve for x
x = 15,929,279,140.08/132,430.58 - Step 6: Final answer
x = 120,283.99
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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.