Finding the Fourth Proportional to 106,695.48, 147,114.84 and 72,724.08
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Solution
The fourth proportional to 106,695.48, 147,114.84 and 72,724.08 is: 100,274.08
Step by Step Solution
- Step 1: Write the proportion equation
106,695.48 : 147,114.84 = 72,724.08 : x - Step 2: Convert to fraction form
106,695.48/147,114.84 = 72,724.08/x - Step 3: Cross multiply
106,695.48x = 147,114.84 × 72,724.08 - Step 4: Simplify right side
106,695.48x = 10,698,791,393.35 - Step 5: Solve for x
x = 10,698,791,393.35/106,695.48 - Step 6: Final answer
x = 100,274.08
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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.