Finding the Fourth Proportional to 72,748.80, 102,124.80 and 72,748.80
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Solution
The fourth proportional to 72,748.80, 102,124.80 and 72,748.80 is: 102,124.80
Step by Step Solution
- Step 1: Write the proportion equation
72,748.80 : 102,124.80 = 72,748.80 : x - Step 2: Convert to fraction form
72,748.80/102,124.80 = 72,748.80/x - Step 3: Cross multiply
72,748.80x = 102,124.80 × 72,748.80 - Step 4: Simplify right side
72,748.80x = 7,429,456,650.24 - Step 5: Solve for x
x = 7,429,456,650.24/72,748.80 - Step 6: Final answer
x = 102,124.80
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.