Finding the Fourth Proportional to 171,723.80, 257,585.70 and 76,953.80
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Solution
The fourth proportional to 171,723.80, 257,585.70 and 76,953.80 is: 115,430.70
Step by Step Solution
- Step 1: Write the proportion equation
171,723.80 : 257,585.70 = 76,953.80 : x - Step 2: Convert to fraction form
171,723.80/257,585.70 = 76,953.80/x - Step 3: Cross multiply
171,723.80x = 257,585.70 × 76,953.80 - Step 4: Simplify right side
171,723.80x = 19,822,198,440.66 - Step 5: Solve for x
x = 19,822,198,440.66/171,723.80 - Step 6: Final answer
x = 115,430.70
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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.