Finding the Fourth Proportional to 126,919.14, 175,149.45 and 70,331.46
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Solution
The fourth proportional to 126,919.14, 175,149.45 and 70,331.46 is: 97,057.99
Step by Step Solution
- Step 1: Write the proportion equation
126,919.14 : 175,149.45 = 70,331.46 : x - Step 2: Convert to fraction form
126,919.14/175,149.45 = 70,331.46/x - Step 3: Cross multiply
126,919.14x = 175,149.45 × 70,331.46 - Step 4: Simplify right side
126,919.14x = 12,318,516,536.70 - Step 5: Solve for x
x = 12,318,516,536.70/126,919.14 - Step 6: Final answer
x = 97,057.99
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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.