Finding the Fourth Proportional to 156,994.10, 216,575.68 and 93,286.80
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Solution
The fourth proportional to 156,994.10, 216,575.68 and 93,286.80 is: 128,690.52
Step by Step Solution
- Step 1: Write the proportion equation
156,994.10 : 216,575.68 = 93,286.80 : x - Step 2: Convert to fraction form
156,994.10/216,575.68 = 93,286.80/x - Step 3: Cross multiply
156,994.10x = 216,575.68 × 93,286.80 - Step 4: Simplify right side
156,994.10x = 20,203,652,145.02 - Step 5: Solve for x
x = 20,203,652,145.02/156,994.10 - Step 6: Final answer
x = 128,690.52
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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.