Finding the Fourth Proportional to 120,730.96, 166,668.66 and 75,434.08
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Solution
The fourth proportional to 120,730.96, 166,668.66 and 75,434.08 is: 104,136.48
Step by Step Solution
- Step 1: Write the proportion equation
120,730.96 : 166,668.66 = 75,434.08 : x - Step 2: Convert to fraction form
120,730.96/166,668.66 = 75,434.08/x - Step 3: Cross multiply
120,730.96x = 166,668.66 × 75,434.08 - Step 4: Simplify right side
120,730.96x = 12,572,497,031.93 - Step 5: Solve for x
x = 12,572,497,031.93/120,730.96 - Step 6: Final answer
x = 104,136.48
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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.