Finding the Fourth Proportional to 127,749.86, 176,298.80 and 73,311.99
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Solution
The fourth proportional to 127,749.86, 176,298.80 and 73,311.99 is: 101,172.83
Step by Step Solution
- Step 1: Write the proportion equation
127,749.86 : 176,298.80 = 73,311.99 : x - Step 2: Convert to fraction form
127,749.86/176,298.80 = 73,311.99/x - Step 3: Cross multiply
127,749.86x = 176,298.80 × 73,311.99 - Step 4: Simplify right side
127,749.86x = 12,924,814,981.12 - Step 5: Solve for x
x = 12,924,814,981.12/127,749.86 - Step 6: Final answer
x = 101,172.83
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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.