Finding the Fourth Proportional to 99,586.35, 149,406.12 and 43,430.99
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Solution
The fourth proportional to 99,586.35, 149,406.12 and 43,430.99 is: 65,158.08
Step by Step Solution
- Step 1: Write the proportion equation
99,586.35 : 149,406.12 = 43,430.99 : x - Step 2: Convert to fraction form
99,586.35/149,406.12 = 43,430.99/x - Step 3: Cross multiply
99,586.35x = 149,406.12 × 43,430.99 - Step 4: Simplify right side
99,586.35x = 6,488,854,956.63 - Step 5: Solve for x
x = 6,488,854,956.63/99,586.35 - Step 6: Final answer
x = 65,158.08
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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.