Finding the Fourth Proportional to 131,777.30, 181,852.40 and 71,347.99
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Solution
The fourth proportional to 131,777.30, 181,852.40 and 71,347.99 is: 98,460.08
Step by Step Solution
- Step 1: Write the proportion equation
131,777.30 : 181,852.40 = 71,347.99 : x - Step 2: Convert to fraction form
131,777.30/181,852.40 = 71,347.99/x - Step 3: Cross multiply
131,777.30x = 181,852.40 × 71,347.99 - Step 4: Simplify right side
131,777.30x = 12,974,802,940.42 - Step 5: Solve for x
x = 12,974,802,940.42/131,777.30 - Step 6: Final answer
x = 98,460.08
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1.5x scale
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.