Finding the Fourth Proportional to 133,292.36, 183,963.48 and 76,692.80
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Solution
The fourth proportional to 133,292.36, 183,963.48 and 76,692.80 is: 105,847.58
Step by Step Solution
- Step 1: Write the proportion equation
133,292.36 : 183,963.48 = 76,692.80 : x - Step 2: Convert to fraction form
133,292.36/183,963.48 = 76,692.80/x - Step 3: Cross multiply
133,292.36x = 183,963.48 × 76,692.80 - Step 4: Simplify right side
133,292.36x = 14,108,674,378.94 - Step 5: Solve for x
x = 14,108,674,378.94/133,292.36 - Step 6: Final answer
x = 105,847.58
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.