Finding the Fourth Proportional to 130,113.09, 194,635.02 and 103,869.09
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Solution
The fourth proportional to 130,113.09, 194,635.02 and 103,869.09 is: 155,376.85
Step by Step Solution
- Step 1: Write the proportion equation
130,113.09 : 194,635.02 = 103,869.09 : x - Step 2: Convert to fraction form
130,113.09/194,635.02 = 103,869.09/x - Step 3: Cross multiply
130,113.09x = 194,635.02 × 103,869.09 - Step 4: Simplify right side
130,113.09x = 20,216,562,409.53 - Step 5: Solve for x
x = 20,216,562,409.53/130,113.09 - Step 6: Final answer
x = 155,376.85
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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.