Finding the Fourth Proportional to 120,131.93, 165,767.21 and 66,417.99
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Solution
The fourth proportional to 120,131.93, 165,767.21 and 66,417.99 is: 91,648.61
Step by Step Solution
- Step 1: Write the proportion equation
120,131.93 : 165,767.21 = 66,417.99 : x - Step 2: Convert to fraction form
120,131.93/165,767.21 = 66,417.99/x - Step 3: Cross multiply
120,131.93x = 165,767.21 × 66,417.99 - Step 4: Simplify right side
120,131.93x = 11,009,924,896.11 - Step 5: Solve for x
x = 11,009,924,896.11/120,131.93 - Step 6: Final answer
x = 91,648.61
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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.