Finding the Fourth Proportional to 139,624.68, 209,357.64 and 95,305.08
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Solution
The fourth proportional to 139,624.68, 209,357.64 and 95,305.08 is: 142,903.44
Step by Step Solution
- Step 1: Write the proportion equation
139,624.68 : 209,357.64 = 95,305.08 : x - Step 2: Convert to fraction form
139,624.68/209,357.64 = 95,305.08/x - Step 3: Cross multiply
139,624.68x = 209,357.64 × 95,305.08 - Step 4: Simplify right side
139,624.68x = 19,952,846,628.81 - Step 5: Solve for x
x = 19,952,846,628.81/139,624.68 - Step 6: Final answer
x = 142,903.44
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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.