Finding the Fourth Proportional to 186,820.12, 257,810.37 and 106,247.53
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Solution
The fourth proportional to 186,820.12, 257,810.37 and 106,247.53 is: 146,620.80
Step by Step Solution
- Step 1: Write the proportion equation
186,820.12 : 257,810.37 = 106,247.53 : x - Step 2: Convert to fraction form
186,820.12/257,810.37 = 106,247.53/x - Step 3: Cross multiply
186,820.12x = 257,810.37 × 106,247.53 - Step 4: Simplify right side
186,820.12x = 27,391,715,020.89 - Step 5: Solve for x
x = 27,391,715,020.89/186,820.12 - Step 6: Final answer
x = 146,620.80
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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.