Finding the Fourth Proportional to 126,743.05, 174,924.62 and 72,294.95
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Solution
The fourth proportional to 126,743.05, 174,924.62 and 72,294.95 is: 99,777.99
Step by Step Solution
- Step 1: Write the proportion equation
126,743.05 : 174,924.62 = 72,294.95 : x - Step 2: Convert to fraction form
126,743.05/174,924.62 = 72,294.95/x - Step 3: Cross multiply
126,743.05x = 174,924.62 × 72,294.95 - Step 4: Simplify right side
126,743.05x = 12,646,166,166.91 - Step 5: Solve for x
x = 12,646,166,166.91/126,743.05 - Step 6: Final answer
x = 99,777.99
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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.