Finding the Fourth Proportional to 140,825.99, 193,930.29 and 131,820.99
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Solution
The fourth proportional to 140,825.99, 193,930.29 and 131,820.99 is: 181,529.59
Step by Step Solution
- Step 1: Write the proportion equation
140,825.99 : 193,930.29 = 131,820.99 : x - Step 2: Convert to fraction form
140,825.99/193,930.29 = 131,820.99/x - Step 3: Cross multiply
140,825.99x = 193,930.29 × 131,820.99 - Step 4: Simplify right side
140,825.99x = 25,564,082,818.79 - Step 5: Solve for x
x = 25,564,082,818.79/140,825.99 - Step 6: Final answer
x = 181,529.59
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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.