Finding the Fourth Proportional to 110,987.36, 153,163.21 and 59,999.98
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Solution
The fourth proportional to 110,987.36, 153,163.21 and 59,999.98 is: 82,800.32
Step by Step Solution
- Step 1: Write the proportion equation
110,987.36 : 153,163.21 = 59,999.98 : x - Step 2: Convert to fraction form
110,987.36/153,163.21 = 59,999.98/x - Step 3: Cross multiply
110,987.36x = 153,163.21 × 59,999.98 - Step 4: Simplify right side
110,987.36x = 9,189,788,770.92 - Step 5: Solve for x
x = 9,189,788,770.92/110,987.36 - Step 6: Final answer
x = 82,800.32
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.