Finding the Fourth Proportional to 107,318.10, 160,823.55 and 74,447.70
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Solution
The fourth proportional to 107,318.10, 160,823.55 and 74,447.70 is: 111,565.00
Step by Step Solution
- Step 1: Write the proportion equation
107,318.10 : 160,823.55 = 74,447.70 : x - Step 2: Convert to fraction form
107,318.10/160,823.55 = 74,447.70/x - Step 3: Cross multiply
107,318.10x = 160,823.55 × 74,447.70 - Step 4: Simplify right side
107,318.10x = 11,972,943,403.34 - Step 5: Solve for x
x = 11,972,943,403.34/107,318.10 - Step 6: Final answer
x = 111,565.00
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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.