Finding the Fourth Proportional to 135,038.10, 202,557.15 and 84,955.80
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Solution
The fourth proportional to 135,038.10, 202,557.15 and 84,955.80 is: 127,433.70
Step by Step Solution
- Step 1: Write the proportion equation
135,038.10 : 202,557.15 = 84,955.80 : x - Step 2: Convert to fraction form
135,038.10/202,557.15 = 84,955.80/x - Step 3: Cross multiply
135,038.10x = 202,557.15 × 84,955.80 - Step 4: Simplify right side
135,038.10x = 17,208,404,723.97 - Step 5: Solve for x
x = 17,208,404,723.97/135,038.10 - Step 6: Final answer
x = 127,433.70
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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.