Finding the Fourth Proportional to 140,930.65, 211,114.31 and 84,739.99
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Solution
The fourth proportional to 140,930.65, 211,114.31 and 84,739.99 is: 126,940.62
Step by Step Solution
- Step 1: Write the proportion equation
140,930.65 : 211,114.31 = 84,739.99 : x - Step 2: Convert to fraction form
140,930.65/211,114.31 = 84,739.99/x - Step 3: Cross multiply
140,930.65x = 211,114.31 × 84,739.99 - Step 4: Simplify right side
140,930.65x = 17,889,824,518.26 - Step 5: Solve for x
x = 17,889,824,518.26/140,930.65 - Step 6: Final answer
x = 126,940.62
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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.