Finding the Fourth Proportional to 126,562.08, 190,138.35 and 74,008.50
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Solution
The fourth proportional to 126,562.08, 190,138.35 and 74,008.50 is: 111,185.39
Step by Step Solution
- Step 1: Write the proportion equation
126,562.08 : 190,138.35 = 74,008.50 : x - Step 2: Convert to fraction form
126,562.08/190,138.35 = 74,008.50/x - Step 3: Cross multiply
126,562.08x = 190,138.35 × 74,008.50 - Step 4: Simplify right side
126,562.08x = 14,071,854,075.98 - Step 5: Solve for x
x = 14,071,854,075.98/126,562.08 - Step 6: Final answer
x = 111,185.39
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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.