Finding the Fourth Proportional to 163,462.88, 225,554.36 and 91,829.28
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Solution
The fourth proportional to 163,462.88, 225,554.36 and 91,829.28 is: 126,710.69
Step by Step Solution
- Step 1: Write the proportion equation
163,462.88 : 225,554.36 = 91,829.28 : x - Step 2: Convert to fraction form
163,462.88/225,554.36 = 91,829.28/x - Step 3: Cross multiply
163,462.88x = 225,554.36 × 91,829.28 - Step 4: Simplify right side
163,462.88x = 20,712,494,479.66 - Step 5: Solve for x
x = 20,712,494,479.66/163,462.88 - Step 6: Final answer
x = 126,710.69
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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.