Finding the Fourth Proportional to 73,543.20, 109,483.14 and 73,105.80
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Solution
The fourth proportional to 73,543.20, 109,483.14 and 73,105.80 is: 108,831.99
Step by Step Solution
- Step 1: Write the proportion equation
73,543.20 : 109,483.14 = 73,105.80 : x - Step 2: Convert to fraction form
73,543.20/109,483.14 = 73,105.80/x - Step 3: Cross multiply
73,543.20x = 109,483.14 × 73,105.80 - Step 4: Simplify right side
73,543.20x = 8,003,852,536.21 - Step 5: Solve for x
x = 8,003,852,536.21/73,543.20 - Step 6: Final answer
x = 108,831.99
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.