Finding the Fourth Proportional to 142,777.65, 214,263.36 and 76,265.49
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Solution
The fourth proportional to 142,777.65, 214,263.36 and 76,265.49 is: 114,449.99
Step by Step Solution
- Step 1: Write the proportion equation
142,777.65 : 214,263.36 = 76,265.49 : x - Step 2: Convert to fraction form
142,777.65/214,263.36 = 76,265.49/x - Step 3: Cross multiply
142,777.65x = 214,263.36 × 76,265.49 - Step 4: Simplify right side
142,777.65x = 16,340,900,139.45 - Step 5: Solve for x
x = 16,340,900,139.45/142,777.65 - Step 6: Final answer
x = 114,449.99
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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.