Finding the Fourth Proportional to 191,079.18, 286,621.61 and 72,757.08
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Solution
The fourth proportional to 191,079.18, 286,621.61 and 72,757.08 is: 109,136.70
Step by Step Solution
- Step 1: Write the proportion equation
191,079.18 : 286,621.61 = 72,757.08 : x - Step 2: Convert to fraction form
191,079.18/286,621.61 = 72,757.08/x - Step 3: Cross multiply
191,079.18x = 286,621.61 × 72,757.08 - Step 4: Simplify right side
191,079.18x = 20,853,751,044.71 - Step 5: Solve for x
x = 20,853,751,044.71/191,079.18 - Step 6: Final answer
x = 109,136.70
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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.