Finding the Fourth Proportional to 135,237.20, 202,855.80 and 60,357.20
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Solution
The fourth proportional to 135,237.20, 202,855.80 and 60,357.20 is: 90,535.80
Step by Step Solution
- Step 1: Write the proportion equation
135,237.20 : 202,855.80 = 60,357.20 : x - Step 2: Convert to fraction form
135,237.20/202,855.80 = 60,357.20/x - Step 3: Cross multiply
135,237.20x = 202,855.80 × 60,357.20 - Step 4: Simplify right side
135,237.20x = 12,243,808,091.76 - Step 5: Solve for x
x = 12,243,808,091.76/135,237.20 - Step 6: Final answer
x = 90,535.80
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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.