Finding the Fourth Proportional to 166,073.49, 249,242.67 and 86,134.08
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Solution
The fourth proportional to 166,073.49, 249,242.67 and 86,134.08 is: 129,269.81
Step by Step Solution
- Step 1: Write the proportion equation
166,073.49 : 249,242.67 = 86,134.08 : x - Step 2: Convert to fraction form
166,073.49/249,242.67 = 86,134.08/x - Step 3: Cross multiply
166,073.49x = 249,242.67 × 86,134.08 - Step 4: Simplify right side
166,073.49x = 21,468,289,011.85 - Step 5: Solve for x
x = 21,468,289,011.85/166,073.49 - Step 6: Final answer
x = 129,269.81
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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.