Finding the Fourth Proportional to 157,660.40, 236,490.60 and 110,421.20
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Solution
The fourth proportional to 157,660.40, 236,490.60 and 110,421.20 is: 165,631.80
Step by Step Solution
- Step 1: Write the proportion equation
157,660.40 : 236,490.60 = 110,421.20 : x - Step 2: Convert to fraction form
157,660.40/236,490.60 = 110,421.20/x - Step 3: Cross multiply
157,660.40x = 236,490.60 × 110,421.20 - Step 4: Simplify right side
157,660.40x = 26,113,575,840.72 - Step 5: Solve for x
x = 26,113,575,840.72/157,660.40 - Step 6: Final answer
x = 165,631.80
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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.