Finding the Fourth Proportional to 156,905.40, 235,358.10 and 93,919.80
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Solution
The fourth proportional to 156,905.40, 235,358.10 and 93,919.80 is: 140,879.70
Step by Step Solution
- Step 1: Write the proportion equation
156,905.40 : 235,358.10 = 93,919.80 : x - Step 2: Convert to fraction form
156,905.40/235,358.10 = 93,919.80/x - Step 3: Cross multiply
156,905.40x = 235,358.10 × 93,919.80 - Step 4: Simplify right side
156,905.40x = 22,104,785,680.38 - Step 5: Solve for x
x = 22,104,785,680.38/156,905.40 - Step 6: Final answer
x = 140,879.70
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1.5x scale
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.