Finding the Fourth Proportional to 166,354.56, 249,440.70 and 81,929.07
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Solution
The fourth proportional to 166,354.56, 249,440.70 and 81,929.07 is: 122,848.72
Step by Step Solution
- Step 1: Write the proportion equation
166,354.56 : 249,440.70 = 81,929.07 : x - Step 2: Convert to fraction form
166,354.56/249,440.70 = 81,929.07/x - Step 3: Cross multiply
166,354.56x = 249,440.70 × 81,929.07 - Step 4: Simplify right side
166,354.56x = 20,436,444,571.15 - Step 5: Solve for x
x = 20,436,444,571.15/166,354.56 - Step 6: Final answer
x = 122,848.72
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1.5x scale
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.