Finding the Fourth Proportional to 131,631.36, 197,447.06 and 36,875.63
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Solution
The fourth proportional to 131,631.36, 197,447.06 and 36,875.63 is: 55,313.45
Step by Step Solution
- Step 1: Write the proportion equation
131,631.36 : 197,447.06 = 36,875.63 : x - Step 2: Convert to fraction form
131,631.36/197,447.06 = 36,875.63/x - Step 3: Cross multiply
131,631.36x = 197,447.06 × 36,875.63 - Step 4: Simplify right side
131,631.36x = 7,280,985,211.24 - Step 5: Solve for x
x = 7,280,985,211.24/131,631.36 - Step 6: Final answer
x = 55,313.45
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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.