Finding the Fourth Proportional to 156,740.20, 235,110.30 and 134,189.80
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Solution
The fourth proportional to 156,740.20, 235,110.30 and 134,189.80 is: 201,284.70
Step by Step Solution
- Step 1: Write the proportion equation
156,740.20 : 235,110.30 = 134,189.80 : x - Step 2: Convert to fraction form
156,740.20/235,110.30 = 134,189.80/x - Step 3: Cross multiply
156,740.20x = 235,110.30 × 134,189.80 - Step 4: Simplify right side
156,740.20x = 31,549,404,134.94 - Step 5: Solve for x
x = 31,549,404,134.94/156,740.20 - Step 6: Final answer
x = 201,284.70
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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.