Finding the Fourth Proportional to 120,228.68, 165,901.16 and 69,258.08
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Solution
The fourth proportional to 120,228.68, 165,901.16 and 69,258.08 is: 95,567.84
Step by Step Solution
- Step 1: Write the proportion equation
120,228.68 : 165,901.16 = 69,258.08 : x - Step 2: Convert to fraction form
120,228.68/165,901.16 = 69,258.08/x - Step 3: Cross multiply
120,228.68x = 165,901.16 × 69,258.08 - Step 4: Simplify right side
120,228.68x = 11,489,995,811.37 - Step 5: Solve for x
x = 11,489,995,811.37/120,228.68 - Step 6: Final answer
x = 95,567.84
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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.