Finding the Fourth Proportional to 130,159.31, 195,113.21 and 106,517.84
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Solution
The fourth proportional to 130,159.31, 195,113.21 and 106,517.84 is: 159,673.84
Step by Step Solution
- Step 1: Write the proportion equation
130,159.31 : 195,113.21 = 106,517.84 : x - Step 2: Convert to fraction form
130,159.31/195,113.21 = 106,517.84/x - Step 3: Cross multiply
130,159.31x = 195,113.21 × 106,517.84 - Step 4: Simplify right side
130,159.31x = 20,783,036,176.51 - Step 5: Solve for x
x = 20,783,036,176.51/130,159.31 - Step 6: Final answer
x = 159,673.84
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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.