Finding the Fourth Proportional to 140,923.35, 211,147.29 and 69,751.08
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Solution
The fourth proportional to 140,923.35, 211,147.29 and 69,751.08 is: 104,508.95
Step by Step Solution
- Step 1: Write the proportion equation
140,923.35 : 211,147.29 = 69,751.08 : x - Step 2: Convert to fraction form
140,923.35/211,147.29 = 69,751.08/x - Step 3: Cross multiply
140,923.35x = 211,147.29 × 69,751.08 - Step 4: Simplify right side
140,923.35x = 14,727,751,516.57 - Step 5: Solve for x
x = 14,727,751,516.57/140,923.35 - Step 6: Final answer
x = 104,508.95
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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.