Finding the Fourth Proportional to 126,347.56, 174,359.58 and 72,643.08
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Solution
The fourth proportional to 126,347.56, 174,359.58 and 72,643.08 is: 100,247.42
Step by Step Solution
- Step 1: Write the proportion equation
126,347.56 : 174,359.58 = 72,643.08 : x - Step 2: Convert to fraction form
126,347.56/174,359.58 = 72,643.08/x - Step 3: Cross multiply
126,347.56x = 174,359.58 × 72,643.08 - Step 4: Simplify right side
126,347.56x = 12,666,016,918.71 - Step 5: Solve for x
x = 12,666,016,918.71/126,347.56 - Step 6: Final answer
x = 100,247.42
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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.