Finding the Fourth Proportional to 131,898.18, 197,639.76 and 101,985.48
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Solution
The fourth proportional to 131,898.18, 197,639.76 and 101,985.48 is: 152,817.77
Step by Step Solution
- Step 1: Write the proportion equation
131,898.18 : 197,639.76 = 101,985.48 : x - Step 2: Convert to fraction form
131,898.18/197,639.76 = 101,985.48/x - Step 3: Cross multiply
131,898.18x = 197,639.76 × 101,985.48 - Step 4: Simplify right side
131,898.18x = 20,156,385,790.68 - Step 5: Solve for x
x = 20,156,385,790.68/131,898.18 - Step 6: Final answer
x = 152,817.77
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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.