Finding the Fourth Proportional to 131,905.16, 197,913.07 and 56,986.74
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Solution
The fourth proportional to 131,905.16, 197,913.07 and 56,986.74 is: 85,504.02
Step by Step Solution
- Step 1: Write the proportion equation
131,905.16 : 197,913.07 = 56,986.74 : x - Step 2: Convert to fraction form
131,905.16/197,913.07 = 56,986.74/x - Step 3: Cross multiply
131,905.16x = 197,913.07 × 56,986.74 - Step 4: Simplify right side
131,905.16x = 11,278,420,733.93 - Step 5: Solve for x
x = 11,278,420,733.93/131,905.16 - Step 6: Final answer
x = 85,504.02
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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.