Finding the Fourth Proportional to 107,325.76, 160,988.64 and 40,765.74
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Solution
The fourth proportional to 107,325.76, 160,988.64 and 40,765.74 is: 61,148.61
Step by Step Solution
- Step 1: Write the proportion equation
107,325.76 : 160,988.64 = 40,765.74 : x - Step 2: Convert to fraction form
107,325.76/160,988.64 = 40,765.74/x - Step 3: Cross multiply
107,325.76x = 160,988.64 × 40,765.74 - Step 4: Simplify right side
107,325.76x = 6,562,821,041.19 - Step 5: Solve for x
x = 6,562,821,041.19/107,325.76 - Step 6: Final answer
x = 61,148.61
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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.