Finding the Fourth Proportional to 120,106.16, 165,762.96 and 69,117.84
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Solution
The fourth proportional to 120,106.16, 165,762.96 and 69,117.84 is: 95,392.09
Step by Step Solution
- Step 1: Write the proportion equation
120,106.16 : 165,762.96 = 69,117.84 : x - Step 2: Convert to fraction form
120,106.16/165,762.96 = 69,117.84/x - Step 3: Cross multiply
120,106.16x = 165,762.96 × 69,117.84 - Step 4: Simplify right side
120,106.16x = 11,457,177,747.21 - Step 5: Solve for x
x = 11,457,177,747.21/120,106.16 - Step 6: Final answer
x = 95,392.09
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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.