Finding the Fourth Proportional to 73,176.30, 109,633.23 and 69,239.70
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Solution
The fourth proportional to 73,176.30, 109,633.23 and 69,239.70 is: 103,735.39
Step by Step Solution
- Step 1: Write the proportion equation
73,176.30 : 109,633.23 = 69,239.70 : x - Step 2: Convert to fraction form
73,176.30/109,633.23 = 69,239.70/x - Step 3: Cross multiply
73,176.30x = 109,633.23 × 69,239.70 - Step 4: Simplify right side
73,176.30x = 7,590,971,955.23 - Step 5: Solve for x
x = 7,590,971,955.23/73,176.30 - Step 6: Final answer
x = 103,735.39
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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.