Finding the Fourth Proportional to 120,224.19, 165,921.84 and 69,238.74
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Solution
The fourth proportional to 120,224.19, 165,921.84 and 69,238.74 is: 95,556.64
Step by Step Solution
- Step 1: Write the proportion equation
120,224.19 : 165,921.84 = 69,238.74 : x - Step 2: Convert to fraction form
120,224.19/165,921.84 = 69,238.74/x - Step 3: Cross multiply
120,224.19x = 165,921.84 × 69,238.74 - Step 4: Simplify right side
120,224.19x = 11,488,219,140.08 - Step 5: Solve for x
x = 11,488,219,140.08/120,224.19 - Step 6: Final answer
x = 95,556.64
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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.