Finding the Fourth Proportional to 128,455.35, 192,666.02 and 58,318.53
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Solution
The fourth proportional to 128,455.35, 192,666.02 and 58,318.53 is: 87,470.07
Step by Step Solution
- Step 1: Write the proportion equation
128,455.35 : 192,666.02 = 58,318.53 : x - Step 2: Convert to fraction form
128,455.35/192,666.02 = 58,318.53/x - Step 3: Cross multiply
128,455.35x = 192,666.02 × 58,318.53 - Step 4: Simplify right side
128,455.35x = 11,235,998,775.76 - Step 5: Solve for x
x = 11,235,998,775.76/128,455.35 - Step 6: Final answer
x = 87,470.07
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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.