Finding the Fourth Proportional to 99,379.60, 149,070.29 and 28,302.18
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Solution
The fourth proportional to 99,379.60, 149,070.29 and 28,302.18 is: 42,453.52
Step by Step Solution
- Step 1: Write the proportion equation
99,379.60 : 149,070.29 = 28,302.18 : x - Step 2: Convert to fraction form
99,379.60/149,070.29 = 28,302.18/x - Step 3: Cross multiply
99,379.60x = 149,070.29 × 28,302.18 - Step 4: Simplify right side
99,379.60x = 4,219,014,180.23 - Step 5: Solve for x
x = 4,219,014,180.23/99,379.60 - Step 6: Final answer
x = 42,453.52
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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.