Finding the Fourth Proportional to 109,615.68, 164,423.52 and 26,509.68
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Solution
The fourth proportional to 109,615.68, 164,423.52 and 26,509.68 is: 39,764.52
Step by Step Solution
- Step 1: Write the proportion equation
109,615.68 : 164,423.52 = 26,509.68 : x - Step 2: Convert to fraction form
109,615.68/164,423.52 = 26,509.68/x - Step 3: Cross multiply
109,615.68x = 164,423.52 × 26,509.68 - Step 4: Simplify right side
109,615.68x = 4,358,814,899.67 - Step 5: Solve for x
x = 4,358,814,899.67/109,615.68 - Step 6: Final answer
x = 39,764.52
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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.