Finding the Fourth Proportional to 135,355.49, 202,919.05 and 85,325.32
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Solution
The fourth proportional to 135,355.49, 202,919.05 and 85,325.32 is: 127,916.00
Step by Step Solution
- Step 1: Write the proportion equation
135,355.49 : 202,919.05 = 85,325.32 : x - Step 2: Convert to fraction form
135,355.49/202,919.05 = 85,325.32/x - Step 3: Cross multiply
135,355.49x = 202,919.05 × 85,325.32 - Step 4: Simplify right side
135,355.49x = 17,314,132,875.35 - Step 5: Solve for x
x = 17,314,132,875.35/135,355.49 - Step 6: Final answer
x = 127,916.00
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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.