Finding the Fourth Proportional to 137,321.08, 205,739.36 and 120,263.76
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Solution
The fourth proportional to 137,321.08, 205,739.36 and 120,263.76 is: 180,183.47
Step by Step Solution
- Step 1: Write the proportion equation
137,321.08 : 205,739.36 = 120,263.76 : x - Step 2: Convert to fraction form
137,321.08/205,739.36 = 120,263.76/x - Step 3: Cross multiply
137,321.08x = 205,739.36 × 120,263.76 - Step 4: Simplify right side
137,321.08x = 24,742,989,013.59 - Step 5: Solve for x
x = 24,742,989,013.59/137,321.08 - Step 6: Final answer
x = 180,183.47
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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.