Finding the Fourth Proportional to 71,146.08, 106,719.08 and 18,555.42
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Solution
The fourth proportional to 71,146.08, 106,719.08 and 18,555.42 is: 27,833.12
Step by Step Solution
- Step 1: Write the proportion equation
71,146.08 : 106,719.08 = 18,555.42 : x - Step 2: Convert to fraction form
71,146.08/106,719.08 = 18,555.42/x - Step 3: Cross multiply
71,146.08x = 106,719.08 × 18,555.42 - Step 4: Simplify right side
71,146.08x = 1,980,217,351.41 - Step 5: Solve for x
x = 1,980,217,351.41/71,146.08 - Step 6: Final answer
x = 27,833.12
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1.5x scale
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.