Finding the Fourth Proportional to 83,037.80, 124,556.70 and 68,457.80
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Solution
The fourth proportional to 83,037.80, 124,556.70 and 68,457.80 is: 102,686.70
Step by Step Solution
- Step 1: Write the proportion equation
83,037.80 : 124,556.70 = 68,457.80 : x - Step 2: Convert to fraction form
83,037.80/124,556.70 = 68,457.80/x - Step 3: Cross multiply
83,037.80x = 124,556.70 × 68,457.80 - Step 4: Simplify right side
83,037.80x = 8,526,877,657.26 - Step 5: Solve for x
x = 8,526,877,657.26/83,037.80 - Step 6: Final answer
x = 102,686.70
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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.