Finding the Fourth Proportional to 139,675.14, 209,346.18 and 97,325.88
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Solution
The fourth proportional to 139,675.14, 209,346.18 and 97,325.88 is: 145,872.78
Step by Step Solution
- Step 1: Write the proportion equation
139,675.14 : 209,346.18 = 97,325.88 : x - Step 2: Convert to fraction form
139,675.14/209,346.18 = 97,325.88/x - Step 3: Cross multiply
139,675.14x = 209,346.18 × 97,325.88 - Step 4: Simplify right side
139,675.14x = 20,374,801,193.14 - Step 5: Solve for x
x = 20,374,801,193.14/139,675.14 - Step 6: Final answer
x = 145,872.78
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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.