Finding the Fourth Proportional to 122,299.20, 183,461.36 and 42,337.05
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Solution
The fourth proportional to 122,299.20, 183,461.36 and 42,337.05 is: 63,509.92
Step by Step Solution
- Step 1: Write the proportion equation
122,299.20 : 183,461.36 = 42,337.05 : x - Step 2: Convert to fraction form
122,299.20/183,461.36 = 42,337.05/x - Step 3: Cross multiply
122,299.20x = 183,461.36 × 42,337.05 - Step 4: Simplify right side
122,299.20x = 7,767,211,871.72 - Step 5: Solve for x
x = 7,767,211,871.72/122,299.20 - Step 6: Final answer
x = 63,509.92
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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.