Finding the Fourth Proportional to 134,823.70, 202,235.55 and 90,471.70
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Solution
The fourth proportional to 134,823.70, 202,235.55 and 90,471.70 is: 135,707.55
Step by Step Solution
- Step 1: Write the proportion equation
134,823.70 : 202,235.55 = 90,471.70 : x - Step 2: Convert to fraction form
134,823.70/202,235.55 = 90,471.70/x - Step 3: Cross multiply
134,823.70x = 202,235.55 × 90,471.70 - Step 4: Simplify right side
134,823.70x = 18,296,594,008.94 - Step 5: Solve for x
x = 18,296,594,008.94/134,823.70 - Step 6: Final answer
x = 135,707.55
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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.