Finding the Fourth Proportional to 156,934.87, 216,567.57 and 85,316.68
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Solution
The fourth proportional to 156,934.87, 216,567.57 and 85,316.68 is: 117,735.63
Step by Step Solution
- Step 1: Write the proportion equation
156,934.87 : 216,567.57 = 85,316.68 : x - Step 2: Convert to fraction form
156,934.87/216,567.57 = 85,316.68/x - Step 3: Cross multiply
156,934.87x = 216,567.57 × 85,316.68 - Step 4: Simplify right side
156,934.87x = 18,476,826,068.07 - Step 5: Solve for x
x = 18,476,826,068.07/156,934.87 - Step 6: Final answer
x = 117,735.63
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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.