Finding the Fourth Proportional to 156,794.48, 216,377.92 and 85,175.08
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Solution
The fourth proportional to 156,794.48, 216,377.92 and 85,175.08 is: 117,542.45
Step by Step Solution
- Step 1: Write the proportion equation
156,794.48 : 216,377.92 = 85,175.08 : x - Step 2: Convert to fraction form
156,794.48/216,377.92 = 85,175.08/x - Step 3: Cross multiply
156,794.48x = 216,377.92 × 85,175.08 - Step 4: Simplify right side
156,794.48x = 18,430,006,646.23 - Step 5: Solve for x
x = 18,430,006,646.23/156,794.48 - Step 6: Final answer
x = 117,542.45
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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.