Finding the Fourth Proportional to 131,810.68, 197,715.30 and 31,970.68
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Solution
The fourth proportional to 131,810.68, 197,715.30 and 31,970.68 is: 47,955.85
Step by Step Solution
- Step 1: Write the proportion equation
131,810.68 : 197,715.30 = 31,970.68 : x - Step 2: Convert to fraction form
131,810.68/197,715.30 = 31,970.68/x - Step 3: Cross multiply
131,810.68x = 197,715.30 × 31,970.68 - Step 4: Simplify right side
131,810.68x = 6,321,092,587.40 - Step 5: Solve for x
x = 6,321,092,587.40/131,810.68 - Step 6: Final answer
x = 47,955.85
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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.