Finding the Fourth Proportional to 127,720.23, 176,226.96 and 74,001.99
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Solution
The fourth proportional to 127,720.23, 176,226.96 and 74,001.99 is: 102,107.13
Step by Step Solution
- Step 1: Write the proportion equation
127,720.23 : 176,226.96 = 74,001.99 : x - Step 2: Convert to fraction form
127,720.23/176,226.96 = 74,001.99/x - Step 3: Cross multiply
127,720.23x = 176,226.96 × 74,001.99 - Step 4: Simplify right side
127,720.23x = 13,041,145,731.65 - Step 5: Solve for x
x = 13,041,145,731.65/127,720.23 - Step 6: Final answer
x = 102,107.13
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.