Finding the Fourth Proportional to 135,246.40, 202,869.60 and 97,921.60
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Solution
The fourth proportional to 135,246.40, 202,869.60 and 97,921.60 is: 146,882.40
Step by Step Solution
- Step 1: Write the proportion equation
135,246.40 : 202,869.60 = 97,921.60 : x - Step 2: Convert to fraction form
135,246.40/202,869.60 = 97,921.60/x - Step 3: Cross multiply
135,246.40x = 202,869.60 × 97,921.60 - Step 4: Simplify right side
135,246.40x = 19,865,315,823.36 - Step 5: Solve for x
x = 19,865,315,823.36/135,246.40 - Step 6: Final answer
x = 146,882.40
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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.