Finding the Fourth Proportional to 166,134.70, 249,202.05 and 121,519.90
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Solution
The fourth proportional to 166,134.70, 249,202.05 and 121,519.90 is: 182,279.85
Step by Step Solution
- Step 1: Write the proportion equation
166,134.70 : 249,202.05 = 121,519.90 : x - Step 2: Convert to fraction form
166,134.70/249,202.05 = 121,519.90/x - Step 3: Cross multiply
166,134.70x = 249,202.05 × 121,519.90 - Step 4: Simplify right side
166,134.70x = 30,283,008,195.80 - Step 5: Solve for x
x = 30,283,008,195.80/166,134.70 - Step 6: Final answer
x = 182,279.85
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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.