Finding the Fourth Proportional to 108,689.20, 163,033.80 and 73,259.80
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Solution
The fourth proportional to 108,689.20, 163,033.80 and 73,259.80 is: 109,889.70
Step by Step Solution
- Step 1: Write the proportion equation
108,689.20 : 163,033.80 = 73,259.80 : x - Step 2: Convert to fraction form
108,689.20/163,033.80 = 73,259.80/x - Step 3: Cross multiply
108,689.20x = 163,033.80 × 73,259.80 - Step 4: Simplify right side
108,689.20x = 11,943,823,581.24 - Step 5: Solve for x
x = 11,943,823,581.24/108,689.20 - Step 6: Final answer
x = 109,889.70
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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.