Finding the Fourth Proportional to 100,890.44, 139,232.36 and 62,670.92
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Solution
The fourth proportional to 100,890.44, 139,232.36 and 62,670.92 is: 86,488.08
Step by Step Solution
- Step 1: Write the proportion equation
100,890.44 : 139,232.36 = 62,670.92 : x - Step 2: Convert to fraction form
100,890.44/139,232.36 = 62,670.92/x - Step 3: Cross multiply
100,890.44x = 139,232.36 × 62,670.92 - Step 4: Simplify right side
100,890.44x = 8,725,820,094.97 - Step 5: Solve for x
x = 8,725,820,094.97/100,890.44 - Step 6: Final answer
x = 86,488.08
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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.