Finding the Fourth Proportional to 101,203.80, 151,805.70 and 71,023.20
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Solution
The fourth proportional to 101,203.80, 151,805.70 and 71,023.20 is: 106,534.80
Step by Step Solution
- Step 1: Write the proportion equation
101,203.80 : 151,805.70 = 71,023.20 : x - Step 2: Convert to fraction form
101,203.80/151,805.70 = 71,023.20/x - Step 3: Cross multiply
101,203.80x = 151,805.70 × 71,023.20 - Step 4: Simplify right side
101,203.80x = 10,781,726,592.24 - Step 5: Solve for x
x = 10,781,726,592.24/101,203.80 - Step 6: Final answer
x = 106,534.80
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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.