Finding the Fourth Proportional to 128,710.08, 193,035.96 and 45,604.08
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Solution
The fourth proportional to 128,710.08, 193,035.96 and 45,604.08 is: 68,395.79
Step by Step Solution
- Step 1: Write the proportion equation
128,710.08 : 193,035.96 = 45,604.08 : x - Step 2: Convert to fraction form
128,710.08/193,035.96 = 45,604.08/x - Step 3: Cross multiply
128,710.08x = 193,035.96 × 45,604.08 - Step 4: Simplify right side
128,710.08x = 8,803,227,362.72 - Step 5: Solve for x
x = 8,803,227,362.72/128,710.08 - Step 6: Final answer
x = 68,395.79
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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.