Finding the Fourth Proportional to 131,462.70, 197,194.05 and 121,325.10
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Solution
The fourth proportional to 131,462.70, 197,194.05 and 121,325.10 is: 181,987.65
Step by Step Solution
- Step 1: Write the proportion equation
131,462.70 : 197,194.05 = 121,325.10 : x - Step 2: Convert to fraction form
131,462.70/197,194.05 = 121,325.10/x - Step 3: Cross multiply
131,462.70x = 197,194.05 × 121,325.10 - Step 4: Simplify right side
131,462.70x = 23,924,587,835.66 - Step 5: Solve for x
x = 23,924,587,835.66/131,462.70 - Step 6: Final answer
x = 181,987.65
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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.