Finding the Fourth Proportional to 120,648.96, 180,973.44 and 110,695.68
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Solution
The fourth proportional to 120,648.96, 180,973.44 and 110,695.68 is: 166,043.52
Step by Step Solution
- Step 1: Write the proportion equation
120,648.96 : 180,973.44 = 110,695.68 : x - Step 2: Convert to fraction form
120,648.96/180,973.44 = 110,695.68/x - Step 3: Cross multiply
120,648.96x = 180,973.44 × 110,695.68 - Step 4: Simplify right side
120,648.96x = 20,032,978,002.74 - Step 5: Solve for x
x = 20,032,978,002.74/120,648.96 - Step 6: Final answer
x = 166,043.52
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.