Finding the Fourth Proportional to 127,955.13, 191,777.03 and 90,525.99
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Solution
The fourth proportional to 127,955.13, 191,777.03 and 90,525.99 is: 135,678.86
Step by Step Solution
- Step 1: Write the proportion equation
127,955.13 : 191,777.03 = 90,525.99 : x - Step 2: Convert to fraction form
127,955.13/191,777.03 = 90,525.99/x - Step 3: Cross multiply
127,955.13x = 191,777.03 × 90,525.99 - Step 4: Simplify right side
127,955.13x = 17,360,805,536.48 - Step 5: Solve for x
x = 17,360,805,536.48/127,955.13 - Step 6: Final answer
x = 135,678.86
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.