Finding the Fourth Proportional to 120,132.02, 165,767.34 and 66,418.09
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Solution
The fourth proportional to 120,132.02, 165,767.34 and 66,418.09 is: 91,648.75
Step by Step Solution
- Step 1: Write the proportion equation
120,132.02 : 165,767.34 = 66,418.09 : x - Step 2: Convert to fraction form
120,132.02/165,767.34 = 66,418.09/x - Step 3: Cross multiply
120,132.02x = 165,767.34 × 66,418.09 - Step 4: Simplify right side
120,132.02x = 11,009,949,941.83 - Step 5: Solve for x
x = 11,009,949,941.83/120,132.02 - Step 6: Final answer
x = 91,648.75
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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.