Finding the Fourth Proportional to 73,947.40, 110,921.10 and 73,169.80
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Solution
The fourth proportional to 73,947.40, 110,921.10 and 73,169.80 is: 109,754.70
Step by Step Solution
- Step 1: Write the proportion equation
73,947.40 : 110,921.10 = 73,169.80 : x - Step 2: Convert to fraction form
73,947.40/110,921.10 = 73,169.80/x - Step 3: Cross multiply
73,947.40x = 110,921.10 × 73,169.80 - Step 4: Simplify right side
73,947.40x = 8,116,074,702.78 - Step 5: Solve for x
x = 8,116,074,702.78/73,947.40 - Step 6: Final answer
x = 109,754.70
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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.