Finding the Fourth Proportional to 107,471.20, 161,206.80 and 88,444.30
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Solution
The fourth proportional to 107,471.20, 161,206.80 and 88,444.30 is: 132,666.45
Step by Step Solution
- Step 1: Write the proportion equation
107,471.20 : 161,206.80 = 88,444.30 : x - Step 2: Convert to fraction form
107,471.20/161,206.80 = 88,444.30/x - Step 3: Cross multiply
107,471.20x = 161,206.80 × 88,444.30 - Step 4: Simplify right side
107,471.20x = 14,257,822,581.24 - Step 5: Solve for x
x = 14,257,822,581.24/107,471.20 - Step 6: Final answer
x = 132,666.45
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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.