Finding the Fourth Proportional to 130,006.70, 195,010.05 and 115,232.30
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Solution
The fourth proportional to 130,006.70, 195,010.05 and 115,232.30 is: 172,848.45
Step by Step Solution
- Step 1: Write the proportion equation
130,006.70 : 195,010.05 = 115,232.30 : x - Step 2: Convert to fraction form
130,006.70/195,010.05 = 115,232.30/x - Step 3: Cross multiply
130,006.70x = 195,010.05 × 115,232.30 - Step 4: Simplify right side
130,006.70x = 22,471,456,584.62 - Step 5: Solve for x
x = 22,471,456,584.62/130,006.70 - Step 6: Final answer
x = 172,848.45
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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.