Finding the Fourth Proportional to 126,529.98, 174,611.55 and 72,814.02
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Solution
The fourth proportional to 126,529.98, 174,611.55 and 72,814.02 is: 100,483.45
Step by Step Solution
- Step 1: Write the proportion equation
126,529.98 : 174,611.55 = 72,814.02 : x - Step 2: Convert to fraction form
126,529.98/174,611.55 = 72,814.02/x - Step 3: Cross multiply
126,529.98x = 174,611.55 × 72,814.02 - Step 4: Simplify right side
126,529.98x = 12,714,168,893.93 - Step 5: Solve for x
x = 12,714,168,893.93/126,529.98 - Step 6: Final answer
x = 100,483.45
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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.